1
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Gonzàlez-Rosell A, Copp SM. An Atom-Precise Understanding of DNA-Stabilized Silver Nanoclusters. Acc Chem Res 2024; 57:2117-2129. [PMID: 38995323 PMCID: PMC11308368 DOI: 10.1021/acs.accounts.4c00256] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2024] [Revised: 06/28/2024] [Accepted: 06/28/2024] [Indexed: 07/13/2024]
Abstract
ConspectusDNA-stabilized silver nanoclusters (AgN-DNAs) are sequence-encoded fluorophores. Like other noble metal nanoclusters, the optical properties of AgN-DNAs are dictated by their atomically precise sizes and shapes. What makes AgN-DNAs unique is that nanocluster size and shape are controlled by nucleobase sequence of the templating DNA oligomer. By choice of DNA sequence, it is possible to synthesize a wide range of AgN-DNAs with diverse emission colors and other intriguing photophysical properties. AgN-DNAs hold significant potential as "programmable" emitters for biological imaging due to their combination of small molecular-like sizes, bright and sequence-tuned fluorescence, low toxicities, and cost-effective synthesis. In particular, the potential to extend AgN-DNAs into the second near-infrared region (NIR-II) is promising for deep tissue imaging, which is a major area of interest for advancing biomedical imaging. Achieving this goal requires a deep understanding of the structure-property relationships that govern AgN-DNAs in order to design AgN-DNA emitters with sizes and geometries that support NIR-II emission.In recent years, major advances have been made in understanding the structure and composition of AgN-DNAs, enabling new insights into the correlation of nanocluster structure and photophysical properties. These advances have hinged on combined innovations in mass characterization and crystallography of compositionally pure AgN-DNAs, together with combinatorial experiments and machine learning-guided design. A combined approach is essential due to the major challenge of growing suitable AgN-DNA crystals for diffraction and to the labor-intensive nature of preparing and solving the molecular formulas of atomically precise AgN-DNAs by mass spectrometry. These approaches alone are not feasibly scaled to explore the large sequence space of DNA oligomer templates for AgN-DNAs.This account describes recent fundamental advances in AgN-DNA science that have been enabled by high throughput synthesis and fluorimetry together with detailed analytical studies of purified AgN-DNAs. First, short introductions to nanocluster chemistry and AgN-DNA basics are presented. Then, we review recent large-scale studies that have screened thousands of DNA templates for AgN-DNAs, leading to discovery of distinct classes of these emitters with unique cluster core compositions and ligand chemistries. In particular, the discovery of a new class of chloride-stabilized AgN-DNAs enabled the first ab initio calculations of AgN-DNA electronic structure and present new approaches to stabilize these emitters in biologically relevant conditions. Near-infrared (NIR) emissive AgN-DNAs are also found to exhibit diverse structures and properties. Finally, we conclude by highlighting recent proof-of-principle demonstrations of NIR AgN-DNAs for targeted fluorescence imaging. Continued efforts may future push AgN-DNAs into the tissue transparency window for fluorescence imaging in the NIR-II tissue transparency window.
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Affiliation(s)
- Anna Gonzàlez-Rosell
- Department
of Materials Science and Engineering, University
of California, Irvine, California 92697, United States
| | - Stacy M. Copp
- Department
of Materials Science and Engineering, University
of California, Irvine, California 92697, United States
- Department
of Chemical and Biomolecular Engineering, University of California, Irvine, California 92697, United States
- Department
of Physics and Astronomy, University of
California, Irvine, California 92697, United States
- Department
of Chemistry, University of California, Irvine, California 92697, United States
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2
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Haraguchi N, Kurosaki T, Uchida S. Small luminescent silver clusters stabilized in porous crystalline solids. Phys Chem Chem Phys 2024; 26:6512-6523. [PMID: 38229542 DOI: 10.1039/d3cp04589g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2024]
Abstract
Subnanometric or small metal clusters (SMCs) have been extensively researched due to their unique electronic, optical, catalytic, and magnetic properties, which differ from those of bulk samples. Among the SMCs, silver (Ag) clusters have received significant interest due to their affordability and unique luminescent properties. Currently, two major approaches, gas-phase and liquid-phase synthesis, have been employed to obtain Ag clusters with precise control of size and structure. More recently, attention has been directed toward the utilization of porous crystalline solids such as metal-organic frameworks (MOFs), zeolites, and porous ionic crystals (PICs) to synthesize and stabilize Ag clusters. In this review, we aim to provide a comprehensive overview of the synthesis, structures, and luminescent properties of Ag clusters in porous crystalline solids.
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Affiliation(s)
- Naoya Haraguchi
- Department of Basic Science, School of Arts and Sciences, The University of Tokyo 3-8-1 Komaba, Meguro-ku, Tokyo 153-8902, Japan.
| | - Taisei Kurosaki
- Department of Basic Science, School of Arts and Sciences, The University of Tokyo 3-8-1 Komaba, Meguro-ku, Tokyo 153-8902, Japan.
| | - Sayaka Uchida
- Department of Basic Science, School of Arts and Sciences, The University of Tokyo 3-8-1 Komaba, Meguro-ku, Tokyo 153-8902, Japan.
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3
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Li Q, Yuan J, Zhao D, Wang Y, Li H. Stable and Highly Luminescent Silver Nanoclusters in the 13X Zeolite Enabled by Mg 2+ Doping and Their Luminescence Tuning by Heating Temperature. Inorg Chem 2023; 62:18299-18306. [PMID: 37883650 DOI: 10.1021/acs.inorgchem.3c03079] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2023]
Abstract
Zeolite-confined silver nanoclusters (Ag-zeolite) have aroused vast interest due to their remarkable luminescence. The countercations within a zeolite play critical roles in determining the luminescent properties of the resulting Ag-zeolite. We observed, in this work, that introducing Mg2+ enabled the Ag-13X zeolite a stable and bright yellow emission with a high PLQY of 94.6%, the first report on the luminescence enhancement of the Ag-13X zeolite by Mg2+, to the best of our knowledge. The formation of specific internal electric fields inside 13X and the structural contraction of the zeolite framework due to the high charge density and the small ionic radius of Mg2+ are believed to be responsible for the enhanced stable and bright yellow emission. The stabilization effect of Mg2+ is removed by increasing the heating temperature above 700 °C, which leads to the variation of silver nanoclusters as a result of the framework collapse of the zeolite. The Ag-zeolite synthesized by us, featured with a broad emission band, a high PLQY of 94.6%, and good thermal stability, can be considered a suitable candidate to replace the traditional commercial yellow-emitting phosphor YAG:Ce3+ for light-based applications. This work contributes to a valuable reference for the rational design of silver nanoclusters confined in zeolites with promising new functionalities and stimulates potential applications as novel phosphors for near-ultraviolet light-emitting diodes (NUV-LEDs).
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Affiliation(s)
- Qianrui Li
- National-Local Joint Engineering Laboratory for Energy Conservation in Chemical Process Integration and Resources Utilization, Tianjin Key Laboratory of Chemical Process Safety, School of Chemical Engineering and Technology, Hebei University of Technology, GuangRong Dao 8, Hongqiao District, Tianjin 300130, P. R. China
| | - Jinping Yuan
- National-Local Joint Engineering Laboratory for Energy Conservation in Chemical Process Integration and Resources Utilization, Tianjin Key Laboratory of Chemical Process Safety, School of Chemical Engineering and Technology, Hebei University of Technology, GuangRong Dao 8, Hongqiao District, Tianjin 300130, P. R. China
| | - Di Zhao
- National-Local Joint Engineering Laboratory for Energy Conservation in Chemical Process Integration and Resources Utilization, Tianjin Key Laboratory of Chemical Process Safety, School of Chemical Engineering and Technology, Hebei University of Technology, GuangRong Dao 8, Hongqiao District, Tianjin 300130, P. R. China
| | - Yige Wang
- National-Local Joint Engineering Laboratory for Energy Conservation in Chemical Process Integration and Resources Utilization, Tianjin Key Laboratory of Chemical Process Safety, School of Chemical Engineering and Technology, Hebei University of Technology, GuangRong Dao 8, Hongqiao District, Tianjin 300130, P. R. China
| | - Huanrong Li
- National-Local Joint Engineering Laboratory for Energy Conservation in Chemical Process Integration and Resources Utilization, Tianjin Key Laboratory of Chemical Process Safety, School of Chemical Engineering and Technology, Hebei University of Technology, GuangRong Dao 8, Hongqiao District, Tianjin 300130, P. R. China
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4
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Vandaele J, de Jong F, Romolini G, Pham HT, Escudero D, Fron E. Photophysical Properties of Silver Clusters in Faujasite Zeolites: Does the Crystal Size Matter? J Phys Chem Lett 2023; 14:7626-7631. [PMID: 37602768 DOI: 10.1021/acs.jpclett.3c01547] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/22/2023]
Abstract
Electrostatic interactions between the zeolite cavity and confined noble-metal nanoparticles govern the photophysical properties of these materials. A better understanding of these interactions can afford new perspectives in optoelectronics applications. We investigated this interplay by revealing the peculiar photophysical properties of Ag clusters embedded in nanosized faujasite zeolite structures. Crystal size and steady state optical properties were characterized via integrated light and electron microscopy (ILEM) and steady state spectroscopy. Extensive time-resolved spectroscopy experiments performed on femtosecond to millisecond time scales revealed excited state dynamics that are intriguingly different from those observed for their micrometer sized counterpart. Multiscale modeling investigations were performed to rationalize the effect of the crystal size on the photophysical properties. Our results indicate that for the nanosized crystals, the emissive properties as well as the radiative and nonradiative processes involving the Ag clusters are dramatically dependent on the surface charge density and surface charge balance.
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Affiliation(s)
- Johannes Vandaele
- Molecular Imaging and Photonics, Chemistry, KU Leuven, Celestijnenlaan 200F, B-3001 Leuven, Belgium
| | - Flip de Jong
- Molecular Imaging and Photonics, Chemistry, KU Leuven, Celestijnenlaan 200F, B-3001 Leuven, Belgium
| | - Giacomo Romolini
- Molecular Imaging and Photonics, Chemistry, KU Leuven, Celestijnenlaan 200F, B-3001 Leuven, Belgium
| | - Hung Tan Pham
- Quantum Chemistry and Physical Chemistry, Chemistry, KU Leuven, Celestijnenlaan 200F, B-3001 Leuven, Belgium
| | - Daniel Escudero
- Quantum Chemistry and Physical Chemistry, Chemistry, KU Leuven, Celestijnenlaan 200F, B-3001 Leuven, Belgium
| | - Eduard Fron
- Molecular Imaging and Photonics, Chemistry, KU Leuven, Celestijnenlaan 200F, B-3001 Leuven, Belgium
- Core facility for Advanced Spectroscopy, KU Leuven, Celestijnenlaan 200F, B-3001 Leuven, Belgium
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5
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Haraguchi N, Ogiwara N, Kumabe Y, Kikkawa S, Yamazoe S, Tachikawa T, Uchida S. Size-Controlled Synthesis of Luminescent Few-Atom Silver Clusters via Electron Transfer in Isostructural Redox-Active Porous Ionic Crystals. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023; 19:e2300743. [PMID: 36828792 DOI: 10.1002/smll.202300743] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/04/2023] [Indexed: 06/08/2023]
Abstract
Ag clusters with a controlled number of atoms have received significant interest because they show size-dependent catalytic, optical, electronic, or magnetic properties. However, the synthesis of size-controlled, ligand-free, and air-stable Ag clusters with high yields has not been well-established. Herein, it is shown that isostructural porous ionic crystals (PICs) with redox-active polyoxometalates (POMs) can be used to synthesize Ag clusters via electron transfer from POMs to Ag+ . Ag clusters with average numbers of three, four, or six atoms emitting blue, green, or red colors, respectively, are formed and stabilized in the PICs under ambient conditions without any protecting ligands. The cluster size solely correlates with the degree of electron transfer, which is controlled by the reduction time and types of ions or elements of the PICs. Thus, advantages have been taken of POMs as electron sources and PICs as scaffolds to demonstrate a convenient method to obtain few-atom Ag clusters.
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Affiliation(s)
- Naoya Haraguchi
- Department of Basic Science, School of Arts and Sciences, The University of Tokyo, 3-8-1 Komaba, Meguro-ku, Tokyo, 153-8902, Japan
| | - Naoki Ogiwara
- Department of Basic Science, School of Arts and Sciences, The University of Tokyo, 3-8-1 Komaba, Meguro-ku, Tokyo, 153-8902, Japan
| | - Yoshitaka Kumabe
- Molecular Photoscience Research Center, Kobe University, Rokkodaicho, Nada-ku, Kobe, 657-8501, Japan
| | - Soichi Kikkawa
- Department of Chemistry, Graduate School of Science, Tokyo Metropolitan University, Minami-Osawa, Hachioji, Tokyo, 192-0397, Japan
| | - Seiji Yamazoe
- Department of Chemistry, Graduate School of Science, Tokyo Metropolitan University, Minami-Osawa, Hachioji, Tokyo, 192-0397, Japan
| | - Takashi Tachikawa
- Molecular Photoscience Research Center, Kobe University, Rokkodaicho, Nada-ku, Kobe, 657-8501, Japan
| | - Sayaka Uchida
- Department of Basic Science, School of Arts and Sciences, The University of Tokyo, 3-8-1 Komaba, Meguro-ku, Tokyo, 153-8902, Japan
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6
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Peng B, Zhou JF, Ding M, Shan BQ, Chen T, Zhang K. Structural water molecules dominated p band intermediate states as a unified model for the origin on the photoluminescence emission of noble metal nanoclusters: from monolayer protected clusters to cage confined nanoclusters. SCIENCE AND TECHNOLOGY OF ADVANCED MATERIALS 2023; 24:2210723. [PMID: 37205011 PMCID: PMC10187113 DOI: 10.1080/14686996.2023.2210723] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/27/2023] [Revised: 04/29/2023] [Accepted: 04/29/2023] [Indexed: 05/21/2023]
Abstract
In the past several decades, noble metal nanoclusters (NMNCs) have been developed as an emerging class of luminescent materials due to their superior photo-stability and biocompatibility, but their luminous quantum yield is relatively low and the physical origin of the bright photoluminescence (PL) of NMNCs remain elusive, which limited their practical application. As the well-defined structure and composition of NMNCs have been determined, in this mini-review, the effect of each component (metal core, ligand shell and interfacial water) on their PL properties and corresponded working mechanism were comprehensively introduced, and a model that structural water molecules dominated p band intermediate state was proposed to give a unified understanding on the PL mechanism of NMNCs and a further perspective to the future developments of NMNCs by revisiting the development of our studies on the PL mechanism of NMNCs in the past decade.
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Affiliation(s)
- Bo Peng
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, College of Chemistry and Molecular Engineering, East China Normal University, Shanghai, China
| | - Jia-Feng Zhou
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, College of Chemistry and Molecular Engineering, East China Normal University, Shanghai, China
| | - Meng Ding
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, College of Chemistry and Molecular Engineering, East China Normal University, Shanghai, China
| | - Bing-Qian Shan
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, College of Chemistry and Molecular Engineering, East China Normal University, Shanghai, China
| | - Tong Chen
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, College of Chemistry and Molecular Engineering, East China Normal University, Shanghai, China
| | - Kun Zhang
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, College of Chemistry and Molecular Engineering, East China Normal University, Shanghai, China
- Laboratoire de chimie, Ecole Normale Supérieure de Lyon, Institut de Chimie de Lyon, Université de Lyon, Lyon, France
- Shandong Provincial Key Laboratory of Chemical Energy Storage and Novel Cell Technology, School of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng, Shandong, PR China
- Institute of Eco-Chongming, Shanghai, China
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7
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Pan L, Ye S, Xv X, Lin P, Huang R, Wang D. Zeolite-Encaged Luminescent Silver Nanoclusters. MATERIALS (BASEL, SWITZERLAND) 2023; 16:ma16103736. [PMID: 37241363 DOI: 10.3390/ma16103736] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/05/2023] [Revised: 05/10/2023] [Accepted: 05/10/2023] [Indexed: 05/28/2023]
Abstract
Silver nanoclusters (Ag NCs) are nanoscale aggregates that possess molecular-like discrete energy levels, resulting in electronic configuration-dependent tunable luminescence spanning the entire visible range. Benefiting from the efficient ion exchange capacity, nanometer dimensional cages, and high thermal and chemical stabilities, zeolites have been employed as desirable inorganic matrices to disperse and stabilize Ag NCs. This paper reviewed the recent research progresses on the luminescence properties, spectral manipulation, as well as the theoretical modelling of electronic structure and optical transition of Ag NCs confined inside various zeolites with different topology structures. Furthermore, potential applications of the zeolite-encaged luminescent Ag NCs in lighting, gas monitoring and sensing were presented. This review concludes with a brief comment on the possible future directions in the study of zeolite-encaged luminescent Ag NCs.
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Affiliation(s)
- Ling Pan
- School of Materials Science and Engineering, Tongji University, Shanghai 201804, China
| | - Song Ye
- School of Materials Science and Engineering, Tongji University, Shanghai 201804, China
| | - Xinling Xv
- School of Materials Science and Engineering, Tongji University, Shanghai 201804, China
| | - Peixuan Lin
- School of Materials Science and Engineering, Tongji University, Shanghai 201804, China
| | - Ruihao Huang
- School of Materials Science and Engineering, Tongji University, Shanghai 201804, China
| | - Deping Wang
- School of Materials Science and Engineering, Tongji University, Shanghai 201804, China
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8
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Li Q, Tian X, Yuan J, Zhao D, Wang Y, Li H. Tunable Luminescence of Silver Nanoclusters Confined in SOD/FAU Zeolites and Selective Sensing for Organic Amine. Inorg Chem 2023; 62:2430-2439. [PMID: 36689987 DOI: 10.1021/acs.inorgchem.2c04317] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
A series of Ag-zeolite luminescent composites are prepared based on SOD and FAUY zeolites, and the effect of zeolite host particle size on their dynamic luminescent emission properties was discussed for the first time. The relationship between zeolite particle size and the nucleation of silver nanoclusters (AgNCs) is revealed. With the increase of zeolite particle size from nanometers to microns, the luminescent color of both Ag-SOD and Ag-Y composites shows significant blue shift. The observed tunable luminescence can be accounted for the slower nucleation rate of AgNCs in micron-scale zeolites with longer channels, resulting in smaller nuclearity of AgNCs within large-size zeolites, through the characterization of extended X-ray absorption fine structure, implying the important roles played by the zeolite themselves in determining the luminescence properties. Moreover, the composites prepared by us feature simple signal transduction, fast response (30 s), and excellent selectivity and sensitivity for discriminative luminescence detection of triethylamine and ethylamine, and they have good reversible luminescence response after sensing HAc gas, which might imply the potential applications in the volatile organic amine detection and information encryption field.
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Affiliation(s)
- Qianrui Li
- National-Local Joint Engineering Laboratory for Energy Conservation in Chemical Process Integration and Resources Utilization, Tianjin Key Laboratory of Chemical Process Safety, School of Chemical Engineering and Technology, Hebei University of Technology, GuangRong Dao 8, Hongqiao District, Tianjin 300130, P. R. China
| | - Xinle Tian
- National-Local Joint Engineering Laboratory for Energy Conservation in Chemical Process Integration and Resources Utilization, Tianjin Key Laboratory of Chemical Process Safety, School of Chemical Engineering and Technology, Hebei University of Technology, GuangRong Dao 8, Hongqiao District, Tianjin 300130, P. R. China
| | - Jingping Yuan
- National-Local Joint Engineering Laboratory for Energy Conservation in Chemical Process Integration and Resources Utilization, Tianjin Key Laboratory of Chemical Process Safety, School of Chemical Engineering and Technology, Hebei University of Technology, GuangRong Dao 8, Hongqiao District, Tianjin 300130, P. R. China
| | - Di Zhao
- National-Local Joint Engineering Laboratory for Energy Conservation in Chemical Process Integration and Resources Utilization, Tianjin Key Laboratory of Chemical Process Safety, School of Chemical Engineering and Technology, Hebei University of Technology, GuangRong Dao 8, Hongqiao District, Tianjin 300130, P. R. China
| | - Yige Wang
- National-Local Joint Engineering Laboratory for Energy Conservation in Chemical Process Integration and Resources Utilization, Tianjin Key Laboratory of Chemical Process Safety, School of Chemical Engineering and Technology, Hebei University of Technology, GuangRong Dao 8, Hongqiao District, Tianjin 300130, P. R. China
| | - Huanrong Li
- National-Local Joint Engineering Laboratory for Energy Conservation in Chemical Process Integration and Resources Utilization, Tianjin Key Laboratory of Chemical Process Safety, School of Chemical Engineering and Technology, Hebei University of Technology, GuangRong Dao 8, Hongqiao District, Tianjin 300130, P. R. China
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9
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Xv X, Ye S, Pan L, Lin P, Liao H, Wang D. Tailoring the Luminescence Properties of Silver Clusters Confined in Faujasite Zeolite through Framework Modification. MATERIALS (BASEL, SWITZERLAND) 2022; 15:ma15217431. [PMID: 36363022 PMCID: PMC9657907 DOI: 10.3390/ma15217431] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/21/2022] [Revised: 10/13/2022] [Accepted: 10/19/2022] [Indexed: 06/01/2023]
Abstract
Faujasite zeolites with a regular micropore and mesopore structure have been considered desirable scaffolds to stabilize luminescent silver nanoclusters (Ag CLs), while turning of the emission properties of the confined Ag CLs is still under investigation. In this study, the desilicated and dealuminated faujasite zeolites were first prepared to modify the zeolite framework and Si/Al ratio before Ag+ loading. With thermal treatment on the thereafter Ag+-exchanged zeolites, the Ag CLs formatted inside the D6r cages showed red-shifted emission in the desilicated zeolites and blue-shifted emission in the dealuminated zeolites, so that a tunable emission in the wavelength range of 482-528 nm could be obtained. Meanwhile, the full width at half maximum of the emission spectra is also closely related with framework modification, which monotonously increases with enhancing Si/Al ratio of host zeolite. The XRD, XPS, and spectral measurements indicated that the tunable luminescence properties of Ag CLs result from the controlling of local crystal field and coupling between host lattice and luminescent center. This paper proposes an effective strategy to manipulate the emission properties of Ag CLs confined inside zeolites and may benefit the applications of noble metal clusters activated phosphors in imaging and tunable emission.
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10
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Sun L, Keshavarz M, Romolini G, Dieu B, Hofkens J, de Jong F, Fron E, Roeffaers MBJ, Van der Auweraer M. Origin of the polychromatic photoluminescence of zeolite confined Ag clusters: temperature- and co-cation-dependent luminescence. Chem Sci 2022; 13:11560-11569. [PMID: 36320393 PMCID: PMC9555561 DOI: 10.1039/d2sc03197c] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2022] [Accepted: 08/17/2022] [Indexed: 08/22/2023] Open
Abstract
Zeolite confined silver clusters (AgCLs) have attracted extensive attention due to their remarkable luminescent properties, but the elucidation of the underlying photophysical processes and especially the excited-state dynamics remains a challenge. Herein, we investigate the bright photoluminescence of AgCLs confined in Linde Type A zeolites (LTA) by systematically varying the temperature (298-77 K) and co-cation composition (Li/Na) and examining their respective influence on the steady-state and time-resolved photoluminescence. The observed polychromatic emission of the tetrahedral Ag4(H2O) n 2+ clusters ranges from orange to violet and three distinct emitting species are identified, corresponding to three long-lived triplet states populated consecutively and separated by a small energy barrier. These long-lived species are at the origin of the polychromatic luminescence with high photoluminescence quantum yields. Furthermore, the Li-content dependence of decay times points to the importance of guest-host-guest interactions in tuning the luminescent properties with a 43% decrease of the dominating decay time by increasing Li content. Based on our findings, a simplified model for the photophysical kinetics is proposed that identifies the excited-state processes. The results outlined here pave the way for a rational design of confined metal clusters in various frames and inspire the specified applications of Ag-zeolites.
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Affiliation(s)
- Li Sun
- Chem&Tech - Molecular Imaging and Photonics, KU Leuven Celestijnenlaan 200F 3001 Leuven Belgium
| | - Masoumeh Keshavarz
- Chem&Tech - Molecular Imaging and Photonics, KU Leuven Celestijnenlaan 200F 3001 Leuven Belgium
| | - Giacomo Romolini
- Chem&Tech - Molecular Imaging and Photonics, KU Leuven Celestijnenlaan 200F 3001 Leuven Belgium
| | - Bjorn Dieu
- Chem&Tech - Molecular Imaging and Photonics, KU Leuven Celestijnenlaan 200F 3001 Leuven Belgium
| | - Johan Hofkens
- Chem&Tech - Molecular Imaging and Photonics, KU Leuven Celestijnenlaan 200F 3001 Leuven Belgium
- KU Leuven Core Facility for Advanced Spectroscopy Celestijnenlaan 200F 3001 Leuven Belgium
| | - Flip de Jong
- Chem&Tech - Molecular Imaging and Photonics, KU Leuven Celestijnenlaan 200F 3001 Leuven Belgium
| | - Eduard Fron
- Chem&Tech - Molecular Imaging and Photonics, KU Leuven Celestijnenlaan 200F 3001 Leuven Belgium
- KU Leuven Core Facility for Advanced Spectroscopy Celestijnenlaan 200F 3001 Leuven Belgium
| | - Maarten B J Roeffaers
- Chem&Tech - Centre for Membrane Separations, Adsorption, Catalysis and Spectroscopy for Sustainable Solutions, KU Leuven Celestijnenlaan 200F 3001 Leuven Belgium
| | - Mark Van der Auweraer
- Chem&Tech - Molecular Imaging and Photonics, KU Leuven Celestijnenlaan 200F 3001 Leuven Belgium
- KU Leuven Core Facility for Advanced Spectroscopy Celestijnenlaan 200F 3001 Leuven Belgium
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11
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Yu J, Ye S, Xv X, Pan L, Lin P, Liao H, Wang D. Thermal-Driven Formation of Silver Clusters Inside Na/Li FAUY Zeolites for Formaldehyde Detection. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:nano12183215. [PMID: 36145003 PMCID: PMC9503286 DOI: 10.3390/nano12183215] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/05/2022] [Revised: 09/01/2022] [Accepted: 09/13/2022] [Indexed: 06/01/2023]
Abstract
In this research, the LiY zeolite was firstly synthesized by using NaY as the parent zeolite; thereafter, the LiYAg and NaYAg zeolites created for formaldehyde gas detection were prepared with further Ag+-Li+/Na+ exchange and a mild thermal treatment at 300 °C to promote the formation of luminescent Ag CLs. The spectra experimental results indicated that Ag CLs showed stronger and blue-shifted emissions in LiYAg compared with in NaYAg, and the emission intensity of Ag CLs in both zeolites monotonously decreased when exposed to increasing formaldehyde gas content. Moreover, the linear dependence of the Ag CLs' emission intensity variation on formaldehyde content indicated a reliable method for fast and sensitive formaldehyde detection. According to the XPS, UV-vis absorption, and N2 adsorption-desorption isotherm studies, the formaldehyde-gas-induced luminescence quenching of Ag CLs is due to the formation of Ag2O and Ag NPs, in which the higher content of Ag+/Ag0 redox couples in LiYAg and larger surface area of NaYAg benefit the precise detection of formaldehyde gas in low- and high-content ranges, respectively. Furthermore, the blue-shifted peak position and widened FWHM of Ag CLs can also be used for the indication of formaldehyde gas and the detection limit of NaYAg and LiYAg, which both meet with the standards of the WHO and OSHA.
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12
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Gonzàlez-Rosell A, Guha R, Cerretani C, Rück V, Liisberg MB, Katz BB, Vosch T, Copp SM. DNA Stabilizes Eight-Electron Superatom Silver Nanoclusters with Broadband Downconversion and Microsecond-Lived Luminescence. J Phys Chem Lett 2022; 13:8305-8311. [PMID: 36037464 PMCID: PMC9465679 DOI: 10.1021/acs.jpclett.2c02207] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2022] [Accepted: 08/26/2022] [Indexed: 05/25/2023]
Abstract
DNA oligomers are known to serve as stabilizing ligands for silver nanoclusters (AgN-DNAs) with rod-like nanocluster geometries and nanosecond-lived fluorescence. Here, we report two AgN-DNAs that possess distinctly different structural properties and are the first to exhibit only microsecond-lived luminescence. These emitters are characterized by significant broadband downconversion from the ultraviolet/visible to the near-infrared region. Circular dichroism spectroscopy shows that the structures of these two AgN-DNAs differ significantly from previously reported AgN-DNAs. We find that these nanoclusters contain eight valence electrons, making them the first reported DNA-stabilized luminescent quasi-spherical superatoms. This work demonstrates the important role that nanocluster composition and geometry play in dictating luminescence properties of AgN-DNAs and significantly expands the space of structure-property relations that can be achieved for AgN-DNAs.
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Affiliation(s)
- Anna Gonzàlez-Rosell
- Department
of Materials Science and Engineering, University
of California, Irvine, California 92697, United States
| | - Rweetuparna Guha
- Department
of Materials Science and Engineering, University
of California, Irvine, California 92697, United States
| | - Cecilia Cerretani
- Nanoscience
Center and Department of Chemistry, University
of Copenhagen, Universitetsparken 5, 2100 Copenhagen, Denmark
| | - Vanessa Rück
- Nanoscience
Center and Department of Chemistry, University
of Copenhagen, Universitetsparken 5, 2100 Copenhagen, Denmark
| | - Mikkel B. Liisberg
- Nanoscience
Center and Department of Chemistry, University
of Copenhagen, Universitetsparken 5, 2100 Copenhagen, Denmark
| | - Benjamin B. Katz
- Department
of Chemistry, University of California, Irvine, California 92697, United States
| | - Tom Vosch
- Nanoscience
Center and Department of Chemistry, University
of Copenhagen, Universitetsparken 5, 2100 Copenhagen, Denmark
| | - Stacy M. Copp
- Department
of Materials Science and Engineering, University
of California, Irvine, California 92697, United States
- Department
of Physics and Astronomy, University of
California, Irvine, California 92697, United States
- Department
of Chemical and Biomolecular Engineering, University of California, Irvine, California 92697, United States
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13
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Fatermans J, Romolini G, Altantzis T, Hofkens J, Roeffaers MBJ, Bals S, Van Aert S. Atomic-scale detection of individual lead clusters confined in Linde Type A zeolites. NANOSCALE 2022; 14:9323-9330. [PMID: 35687327 DOI: 10.1039/d2nr01819e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Structural analysis of metal clusters confined in nanoporous materials is typically performed by X-ray-driven techniques. Although X-ray analysis has proved its strength in the characterization of metal clusters, it provides averaged structural information. Therefore, we here present an alternative workflow for bringing the characterization of confined metal clusters towards the local scale. This workflow is based on the combination of aberration-corrected transmission electron microscopy (TEM), TEM image simulations, and powder X-ray diffraction (XRD) with advanced statistical techniques. In this manner, we were able to characterize the clustering of Pb atoms in Linde Type A (LTA) zeolites with Pb loadings as low as 5 wt%. Moreover, individual Pb clusters could be directly detected. The proposed methodology thus enables a local-scale characterization of confined metal clusters in zeolites. This is important for further elucidation of the connection between the structure and the physicochemical properties of such systems.
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Affiliation(s)
- Jarmo Fatermans
- Electron Microscopy for Materials Science (EMAT), University of Antwerp, Groenenborgerlaan 171, 2020 Antwerp, Belgium.
- NANOlab Center of Excellence, University of Antwerp, Belgium.
| | - Giacomo Romolini
- Molecular Imaging and Photonics, Department of Chemistry, KU Leuven, Celestijnenlaan 200F, 3001 Leuven, Belgium
| | - Thomas Altantzis
- Electron Microscopy for Materials Science (EMAT), University of Antwerp, Groenenborgerlaan 171, 2020 Antwerp, Belgium.
- NANOlab Center of Excellence, University of Antwerp, Belgium.
- Applied Electrochemistry and Catalysis Group (ELCAT), University of Antwerp, Universiteitsplein 1, 2610 Wilrijk, Belgium
| | - Johan Hofkens
- Molecular Imaging and Photonics, Department of Chemistry, KU Leuven, Celestijnenlaan 200F, 3001 Leuven, Belgium
- Max Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany
| | - Maarten B J Roeffaers
- Centre for Membrane Separations, Adsorption, Catalysis, And Spectroscopy for Sustainable Solutions (cMACS), KU Leuven, Celestijnenlaan 200F, Box 2461, 3001, Leuven, Belgium.
| | - Sara Bals
- Electron Microscopy for Materials Science (EMAT), University of Antwerp, Groenenborgerlaan 171, 2020 Antwerp, Belgium.
- NANOlab Center of Excellence, University of Antwerp, Belgium.
| | - Sandra Van Aert
- Electron Microscopy for Materials Science (EMAT), University of Antwerp, Groenenborgerlaan 171, 2020 Antwerp, Belgium.
- NANOlab Center of Excellence, University of Antwerp, Belgium.
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14
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Femtosecond Direct Laser Writing of Silver Clusters in Phosphate Glasses for X-ray Spatially-Resolved Dosimetry. CHEMOSENSORS 2022. [DOI: 10.3390/chemosensors10030110] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Radio-photoluminescence in silver-doped phosphate glasses has been extensively used for X-ray dosimetry. In this paper, we present the potential of silver clusters for X-ray spatially resolved dosimetry. Those clusters are generated in phosphate glasses containing a high concentration of silver oxide by femtosecond direct laser writing technique. Two phosphate glasses of different compositions were investigated. First, the spectroscopic properties of the pristine glasses were studied after X-ray irradiation at different doses to assess their dosimetry potential. Second, the impact of X-rays on the three-dimensional inscribed silver clusters has been analyzed using several spectroscopies methods. Our analysis highlights the resilience of embedded silver clusters acting as local probes of the deposited doses. We demonstrate that these inscribed glasses can define the range and sensitivity of X-ray doses and consider the realization of spatially-resolved dosimeters.
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15
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Wu Y, Lin H, Li R, Lin S, Wu C, Huang Q, Xu J, Cheng Y, Wang Y. Laser-direct-writing of molecule-like Ag mx+ nanoclusters in transparent tellurite glass for 3D volumetric optical storage. NANOSCALE 2021; 13:19663-19670. [PMID: 34816864 DOI: 10.1039/d1nr05360d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
In situ constructing program-designed nanostructures via laser-direct-writing (LDW) has proved to be a reliable strategy for optical storage (OS). Herein, a kind of low-melting Ag+-doped TeO2-ZnO-Na2O (TZN) tellurite glass has been demonstrated as an ideal LDW OS medium. Microstructural and spectroscopic studies reveal the generation of molecule-like Agmx+ nanoclusters featured with a broad emission band in the orange-red region upon laser irradiation. Probing the laser-glass interaction yields evidences of the spatial distribution of Ag species responsive to laser-induced thermoelastic pressure wave oscillation, as well as the heat-driven migration/aggregation of Ag species along the radial direction of the laser spot. Raman analyses disclose the loose network of TZN-glass convenient for Ag+ mobility and the increased network connectivity when Agmx+ nanoclusters are precipitated out. Combined with the XPS result of Ag+ → Ag0 reduction, the possible formation mechanism of Ag nanoclusters stabilized in glass has been proposed. In a proof-of-concept experiment, 3D volumetric OS in the TZN glass has been demonstrated, showing optical data encoding/decoding in the form of characters and image patterns.
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Affiliation(s)
- Yaman Wu
- Key Laboratory of Optoelectronic Materials Chemistry and Physics, Key Laboratory of Design and Assembly of Functional Nanostructures, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian, 350002, P. R. China.
- University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Hang Lin
- Key Laboratory of Optoelectronic Materials Chemistry and Physics, Key Laboratory of Design and Assembly of Functional Nanostructures, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian, 350002, P. R. China.
- Fujian Science & Technology Innovation Laboratory for Optoelectronic Information of China, Fuzhou, Fujian, 350108, P. R. China
| | - Renfu Li
- Key Laboratory of Optoelectronic Materials Chemistry and Physics, Key Laboratory of Design and Assembly of Functional Nanostructures, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian, 350002, P. R. China.
| | - Shisheng Lin
- Key Laboratory of Optoelectronic Materials Chemistry and Physics, Key Laboratory of Design and Assembly of Functional Nanostructures, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian, 350002, P. R. China.
- Fujian Science & Technology Innovation Laboratory for Optoelectronic Information of China, Fuzhou, Fujian, 350108, P. R. China
| | - Chuxin Wu
- Key Laboratory of Optoelectronic Materials Chemistry and Physics, Key Laboratory of Design and Assembly of Functional Nanostructures, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian, 350002, P. R. China.
| | - Qiugui Huang
- Key Laboratory of Optoelectronic Materials Chemistry and Physics, Key Laboratory of Design and Assembly of Functional Nanostructures, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian, 350002, P. R. China.
| | - Ju Xu
- Key Laboratory of Optoelectronic Materials Chemistry and Physics, Key Laboratory of Design and Assembly of Functional Nanostructures, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian, 350002, P. R. China.
- Fujian Science & Technology Innovation Laboratory for Optoelectronic Information of China, Fuzhou, Fujian, 350108, P. R. China
| | - Yao Cheng
- Key Laboratory of Optoelectronic Materials Chemistry and Physics, Key Laboratory of Design and Assembly of Functional Nanostructures, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian, 350002, P. R. China.
- Fujian Science & Technology Innovation Laboratory for Optoelectronic Information of China, Fuzhou, Fujian, 350108, P. R. China
| | - Yuansheng Wang
- Key Laboratory of Optoelectronic Materials Chemistry and Physics, Key Laboratory of Design and Assembly of Functional Nanostructures, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian, 350002, P. R. China.
- Fujian Science & Technology Innovation Laboratory for Optoelectronic Information of China, Fuzhou, Fujian, 350108, P. R. China
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16
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Cui E, Qiao D, Li H, Guo L, Tung CH, Wang Y. Engaging Ag(0) single atoms in silver(I) salts-mediated C-B and C-S coupling under visible light irradiation. J Catal 2021. [DOI: 10.1016/j.jcat.2021.08.035] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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17
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Peng B, Zheng LX, Wang PY, Zhou JF, Ding M, Sun HD, Shan BQ, Zhang K. Physical Origin of Dual-Emission of Au-Ag Bimetallic Nanoclusters. Front Chem 2021; 9:756993. [PMID: 34646815 PMCID: PMC8503609 DOI: 10.3389/fchem.2021.756993] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2021] [Accepted: 09/09/2021] [Indexed: 11/13/2022] Open
Abstract
On the origin of photoluminescence of noble metal NCs, there are always hot debates: metal-centered quantum-size confinement effect VS ligand-centered surface state mechanism. Herein, we provided solid evidence that structural water molecules (SWs) confined in the nanocavity formed by surface-protective-ligand packing on the metal NCs are the real luminescent emitters of Au-Ag bimetal NCs. The Ag cation mediated Au-Ag bimetal NCs exhibit the unique pH-dependent dual-emission characteristic with larger Stokes shift up to 200 nm, which could be used as potential ratiometric nanosensors for pH detection. Our results provide a completely new insight on the understanding of the origin of photoluminescence of metal NCs, which elucidates the abnormal PL emission phenomena, including solvent effect, pH-dependent behavior, surface ligand effect, multiple emitter centers, and large-Stoke's shift.
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Affiliation(s)
- Bo Peng
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, College of Chemistry and Molecular Engineering, East China Normal University, Shanghai, China
| | - Liu-Xi Zheng
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, College of Chemistry and Molecular Engineering, East China Normal University, Shanghai, China
| | - Pan-Yue Wang
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, College of Chemistry and Molecular Engineering, East China Normal University, Shanghai, China
| | - Jia-Feng Zhou
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, College of Chemistry and Molecular Engineering, East China Normal University, Shanghai, China
| | - Meng Ding
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, College of Chemistry and Molecular Engineering, East China Normal University, Shanghai, China
| | - Hao-Di Sun
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, College of Chemistry and Molecular Engineering, East China Normal University, Shanghai, China
| | - Bing-Qian Shan
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, College of Chemistry and Molecular Engineering, East China Normal University, Shanghai, China
| | - Kun Zhang
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, College of Chemistry and Molecular Engineering, East China Normal University, Shanghai, China
- Laboratoire de Chimie, Ecole Normale Supérieure de Lyon, Institut de Chimie de Lyon, Université de Lyon, Lyon, France
- Shandong Provincial Key Laboratory of Chemical Energy Storage and Novel Cell Technology, School of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng, China
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18
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Moreno-Torres JA, Flores-Acosta M, Ramírez-Bon R, Coutino-Gonzalez E. Lead confinement and fluorimetric detection using zeolites: towards a rapid and cost-effective detection of lead in water. JPHYS PHOTONICS 2021. [DOI: 10.1088/2515-7647/abf945] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
Abstract
Abstract
Metal clusters stabilized in zeolites have emerged as promising candidates for optoelectronic applications due to their remarkable luminescent properties. These optical properties have been exploited to develop fast and highly sensitive methods for optical sensing in environmental monitoring. However, to date, these materials have not been proposed as a detection method based on their luminescent response for sensing toxic metal ions. In this report, we synthesized luminescent lead (Pb) clusters into the cavities of synthetic F9-NaX zeolites, which were used as scaffolds to confine and detect Pb2+ ions in water through a fluorimetric mode. These Pb-F9 samples display an intense cyan emission in dehydrated form. Also, a correlation between the luminescence intensity of the materials and the lead loadings was observed, obtaining a low limit of detection of 1.248 ppb and a limit of quantification of 3.782 ppb. The results clearly demonstrate the potential of luminescent lead-exchanged F9 zeolites as one-step method for lead monitoring in water using a rapid and low-cost strategy.
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19
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Rück V, Cerretani C, Neacşu VA, Liisberg MB, Vosch T. Observation of microsecond luminescence while studying two DNA-stabilized silver nanoclusters emitting in the 800-900 nm range. Phys Chem Chem Phys 2021; 23:13483-13489. [PMID: 34109959 DOI: 10.1039/d1cp01731d] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
We investigated two DNA-stabilized silver nanoclusters (DNA-AgNCs) that show multiple absorption features in the visible region, and emit around 811 nm (DNA811-AgNC) and 841 nm (DNA841-AgNC). Both DNA-AgNCs have large Stokes shifts and can be efficiently excited with red light. A comparison with the commercially available Atto740 yielded fluorescence quantum yields in the same order of magnitude, but a higher photon output above 800 nm since both DNA-AgNCs are more red-shifted. The study of both DNA-AgNCs also revealed previously unobserved photophysical behavior for this class of emitters. The fluorescence quantum yield and decay time of DNA841-AgNC can be increased upon consecutive heating/cooling cycles. DNA811-AgNC has an additional absorption band around 470 nm, which is parallel in orientation to the lowest energy transition at 640 nm. Furthermore, we observed for the first time a DNA-AgNC population (as part of the DNA811-AgNC sample) with green and near-infrared emissive states with nanosecond and microsecond decay times, respectively. A similar dual emissive DNA-AgNC stabilized by a different 10-base DNA strand is also reported in the manuscript. These two examples highlight the need to investigate the presence of red-shifted microsecond emission for this class of emitters.
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Affiliation(s)
- Vanessa Rück
- Department of Chemistry, University of Copenhagen, Universitetsparken 5, Copenhagen 2100, Denmark.
| | - Cecilia Cerretani
- Department of Chemistry, University of Copenhagen, Universitetsparken 5, Copenhagen 2100, Denmark.
| | - Vlad A Neacşu
- Department of Chemistry, University of Copenhagen, Universitetsparken 5, Copenhagen 2100, Denmark.
| | - Mikkel B Liisberg
- Department of Chemistry, University of Copenhagen, Universitetsparken 5, Copenhagen 2100, Denmark.
| | - Tom Vosch
- Department of Chemistry, University of Copenhagen, Universitetsparken 5, Copenhagen 2100, Denmark.
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20
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Haraguchi N, Okunaga T, Shimoyama Y, Ogiwara N, Kikkawa S, Yamazoe S, Inada M, Tachikawa T, Uchida S. Formation of Mixed‐Valence Luminescent Silver Clusters via Cation‐Coupled Electron‐Transfer in a Redox‐Active Ionic Crystal Based on a Dawson‐type Polyoxometalate with Closed Pores. Eur J Inorg Chem 2021. [DOI: 10.1002/ejic.202100101] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Naoya Haraguchi
- Department of Basic Science School of Arts and Sciences The University of Tokyo 3-8-1 Komaba Meguro-ku, Tokyo 153-8902 Japan
| | - Tomoki Okunaga
- Department of Basic Science School of Arts and Sciences The University of Tokyo 3-8-1 Komaba Meguro-ku, Tokyo 153-8902 Japan
| | - Yuto Shimoyama
- Department of Basic Science School of Arts and Sciences The University of Tokyo 3-8-1 Komaba Meguro-ku, Tokyo 153-8902 Japan
| | - Naoki Ogiwara
- Department of Basic Science School of Arts and Sciences The University of Tokyo 3-8-1 Komaba Meguro-ku, Tokyo 153-8902 Japan
| | - Soichi Kikkawa
- Department of Chemistry Graduate School of Science Tokyo Metropolitan University Minami-Osawa Hachioji, Tokyo 192-0397 Japan
| | - Seiji Yamazoe
- Department of Chemistry Graduate School of Science Tokyo Metropolitan University Minami-Osawa Hachioji, Tokyo 192-0397 Japan
| | - Miki Inada
- Center of Advanced Instrumental Analysis Kyushu University Kasuga-koen, Kasuga, Fukuoka 816-8580 Japan
| | - Takashi Tachikawa
- Molecular Photoscience Research Center Kobe University Rokkodaicho, Nada-ku, Kobe 657-8501 Japan
| | - Sayaka Uchida
- Department of Basic Science School of Arts and Sciences The University of Tokyo 3-8-1 Komaba Meguro-ku, Tokyo 153-8902 Japan
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21
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Zhang Y, Smith D, Readman JE, Mayoral A. Direct Imaging and Location of Pb 2+ and K + in EMT Framework-Type Zeolite. THE JOURNAL OF PHYSICAL CHEMISTRY. C, NANOMATERIALS AND INTERFACES 2021; 125:6461-6470. [PMID: 34603569 PMCID: PMC8482759 DOI: 10.1021/acs.jpcc.1c00550] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/21/2021] [Revised: 02/21/2021] [Indexed: 06/13/2023]
Abstract
The understanding of the structural framework and metal locations within zeolites are two critical aspects to tune and further exploit their properties as heterogeneous catalysts, advanced optical devices, or as water remediation materials. The development of electron microscopy has made it possible to observe directly the zeolitic framework and the distribution of extra framework cations within the pores at the atomic level. Here, we have studied the EMT framework providing data with an unprecedented spatial resolution, which have allowed the analysis of the FAU domains present in the framework. Additionally, potassium and lead (introduced by aqueous ion exchange), which were nonperiodically distributed in the pores have been located. An alternative image mode, annular bright field, has been used, proving its usefulness to extend the spatial resolution and increase the sensitivity toward light elements such as bridging oxygen. Finally, the combination of atomic imaging (local information) with the three-dimensional electron diffraction tomography analysis (averaged information) determined the lead-EMT crystal symmetry to be P 63 mc .
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Affiliation(s)
- Yaping Zhang
- Center for High-Resolution Electron Microscopy (CℏEM), School of Physical Science and Technology (SPST), ShanghaiTech University, 393 Middle Huaxia Road, Pudong, Shanghai 201210, China
| | - Daniel Smith
- School of Physical Sciences and Computing, University of Central Lancashire, Preston PR1 2HE, United Kingdom
| | - Jennifer E Readman
- School of Physical Sciences and Computing, University of Central Lancashire, Preston PR1 2HE, United Kingdom
| | - Alvaro Mayoral
- Instituto de Nanociencia y Materiales de Aragón (INMA), CSIC-Universidad de Zaragoza, Zaragoza 50009, Spain
- Center for High-Resolution Electron Microscopy (CℏEM), School of Physical Science and Technology (SPST), ShanghaiTech University, 393 Middle Huaxia Road, Pudong, Shanghai 201210, China
- Advanced Microscopy Laboratory (LMA), University of Zaragoza, Zaragoza 50018, Spain
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22
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Gonzàlez-Rosell A, Cerretani C, Mastracco P, Vosch T, Copp SM. Structure and luminescence of DNA-templated silver clusters. NANOSCALE ADVANCES 2021; 3:1230-1260. [PMID: 36132866 PMCID: PMC9417461 DOI: 10.1039/d0na01005g] [Citation(s) in RCA: 40] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/01/2020] [Accepted: 01/21/2021] [Indexed: 05/05/2023]
Abstract
DNA serves as a versatile template for few-atom silver clusters and their organized self-assembly. These clusters possess unique structural and photophysical properties that are programmed into the DNA template sequence, resulting in a rich palette of fluorophores which hold promise as chemical and biomolecular sensors, biolabels, and nanophotonic elements. Here, we review recent advances in the fundamental understanding of DNA-templated silver clusters (Ag N -DNAs), including the role played by the silver-mediated DNA complexes which are synthetic precursors to Ag N -DNAs, structure-property relations of Ag N -DNAs, and the excited state dynamics leading to fluorescence in these clusters. We also summarize the current understanding of how DNA sequence selects the properties of Ag N -DNAs and how sequence can be harnessed for informed design and for ordered multi-cluster assembly. To catalyze future research, we end with a discussion of several opportunities and challenges, both fundamental and applied, for the Ag N -DNA research community. A comprehensive fundamental understanding of this class of metal cluster fluorophores can provide the basis for rational design and for advancement of their applications in fluorescence-based sensing, biosciences, nanophotonics, and catalysis.
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Affiliation(s)
- Anna Gonzàlez-Rosell
- Department of Materials Science and Engineering, University of California Irvine California 92697-2585 USA
| | - Cecilia Cerretani
- Nanoscience Center and Department of Chemistry, University of Copenhagen, Universitetsparken 5 2100 Copenhagen Denmark
| | - Peter Mastracco
- Department of Materials Science and Engineering, University of California Irvine California 92697-2585 USA
| | - Tom Vosch
- Nanoscience Center and Department of Chemistry, University of Copenhagen, Universitetsparken 5 2100 Copenhagen Denmark
| | - Stacy M Copp
- Department of Materials Science and Engineering, University of California Irvine California 92697-2585 USA
- Department of Physics and Astronomy, University of California Irvine California 92697-4575 USA
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23
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Cametti G, Scheinost AC, Churakov SV. Structural Evolution of Ag-LEV Zeolite upon Heating: An In Situ Single-Crystal X-ray Diffraction (SC-XRD) and X-ray Absorption Spectroscopy (XAS) Study. ACS OMEGA 2020; 5:31774-31783. [PMID: 33344831 PMCID: PMC7745403 DOI: 10.1021/acsomega.0c04455] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/11/2020] [Accepted: 10/22/2020] [Indexed: 06/12/2023]
Abstract
Ag-exchanged zeolites are known to have improved sorption and catalytic properties compared to the raw natural material. The application range of Ag-exchanged zeolites is linked to the stability of the exchanged form and its structural evolution at high temperatures. In this study, we investigated the thermal stability of a Ag-exchanged zeolite with an LEV framework type. The dehydration path was monitored in situ by single-crystal X-ray diffraction (SC-XRD) and X-ray absorption fine structure spectroscopy (XAFS). The experimental data were compared with those extrapolated from molecular dynamics (MD) trajectories. Our results showed that Ag-exchanged levyne (Ag-LEV) follows a different dehydration path compared to that of the natural levyne (Ca-LEV). Between 25 and 350 °C, the unit cell volume contraction was -4% with respect to that measured at room temperature. Upon dehydration, Ag-LEV transformed to the LEV B topology: such transformation is accompanied by the change from R 3̅ m to R 3m space group and by the onset of the rupture of one T-O-T connection at 250 °C. Differently from Ca-LEV, no additional change to LEV B' configuration was detected. XAFS analysis indicated that each Ag is approximately surrounded by four oxygen atoms between 2.15 and 2.40 Å. This local environment was maintained up to 650 °C. Weak Ag+1-Ag+1 interactions, detected in the whole investigated temperature range, are mainly ascribed to the presence of Ag-erionite (Ag-ERI) intergrown with Ag-LEV. No reduction to elemental Ag0 occurred upon heating.
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Affiliation(s)
- Georgia Cametti
- Institute
of Geological Sciences, Baltzerstrasse 1+3, 3012 Bern, Switzerland
| | - Andreas C. Scheinost
- The
Rossendorf Beamline at the European Synchrotron Radiation Facility
(ESRF), Avenue des Martyrs
71, 38043 Grenoble, France
- Institute
of Resource Ecology, Bautzner Landstrasse 400, 01328 Dresden, Germany
| | - Sergey V. Churakov
- Institute
of Geological Sciences, Baltzerstrasse 1+3, 3012 Bern, Switzerland
- Paul
Scherrer Institut, Forschungstrasse
111, 5232 Villigen
PSI, Switzerland
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24
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Miyanaga T, Suzuki Y, Narita S, Nakamura R. Local structure change of luminescent Ag zeolite-A and -X studied by in situ XAFS and IR spectroscopy. JOURNAL OF SYNCHROTRON RADIATION 2020; 27:1640-1647. [PMID: 33147190 DOI: 10.1107/s1600577520012540] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/17/2020] [Accepted: 09/14/2020] [Indexed: 06/11/2023]
Abstract
The in situ X-ray absorption fine structure (XAFS) for the structural changes of Ag clusters produced in the cavity of luminescent zeolites by thermal treatment of Ag zeolite-A and Ag zeolite-X has been studied. The following procedures are compared: (i) samples are heated and cooled to room temperature under atmosphere (under air); (ii) samples are heated and cooled to room temperature in a vacuum and then exposed to air. It was confirmed that the Ag clusters were broken when the Ag zeolite was exposed to air for Ag zeolite-X, which complements our previous results for Ag12-A. It is suggested that the deformation of the Ag clusters plays an important role in the generation of a strong photoluminescence band, and Ag clusters may not be direct species producing the strong photoluminescence. The local structure of the Ag ions was found to be slightly different from that of the unheated species. The difference may originate from the formation and breakdown of Ag clusters in the zeolite cavity.
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Affiliation(s)
- Takafumi Miyanaga
- Department of Mathematics and Physics, Hirosaki University, 3 Bunkyo-cho, Hirosaki, Aomori 036-856, Japan
| | - Yushi Suzuki
- Department of Mathematics and Physics, Hirosaki University, 3 Bunkyo-cho, Hirosaki, Aomori 036-856, Japan
| | - Sho Narita
- Department of Mathematics and Physics, Hirosaki University, 3 Bunkyo-cho, Hirosaki, Aomori 036-856, Japan
| | - Reki Nakamura
- Department of Mathematics and Physics, Hirosaki University, 3 Bunkyo-cho, Hirosaki, Aomori 036-856, Japan
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Kunwar P, Soman P. Direct Laser Writing of Fluorescent Silver Nanoclusters: A Review of Methods and Applications. ACS APPLIED NANO MATERIALS 2020; 3:7325-7342. [PMID: 33134885 PMCID: PMC7595336 DOI: 10.1021/acsanm.0c01339] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/08/2023]
Abstract
Metal nanoclusters (NCs) are nanomaterials of size of less than 2 nm that exhibit a set of unique physical, chemical, optical, and electronic properties. Because of recent interest in NCs, a great deal of effort is being made to develop synthetic routes that allow control over the NC size, shape, geometry, and properties. Direct laser writing is one of the few synthesis methods that allow the generation of photostable NCs with high quantum yield in a highly controlled fashion. A key advantage of laser-written NCs is the ability to create easy-to-use solid-state devices for a range of applications. This review will present necessary background and recent advances in laser writing of silver NCs and their applications in different solid-state matrixes such as glass, zeolites, and polymer substrate. This topic will be of interest to researchers in the fields of materials science, optics and photonics, chemistry, and biomedical sciences.
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Affiliation(s)
- Puskal Kunwar
- Department of Chemical and Bioengineering, Syracuse University, Syracuse, New York 13244, United States
| | - Pranav Soman
- Department of Chemical and Bioengineering, Syracuse University, Syracuse, New York 13244, United States
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26
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Taccone MI, Fernández RA, Molina FL, Gustín I, Sánchez CG, Dassie SA, Pino GA. On the photophysics of electrochemically generated silver nanoclusters: spectroscopic and theoretical characterization. Phys Chem Chem Phys 2020; 22:16813-16821. [PMID: 32662468 DOI: 10.1039/d0cp02136a] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
Ligand-free atomic silver nanoclusters (AgNCs) were successfully synthesized following the electrochemical procedure developed by Lopez-Quintela and col. (D. Buceta, N. Busto, G. Barone, J. M. Leal, F. Domínguez, L. J. Giovanetti, F. G. Requejo, B. García and M. A. López-Quintela, Angew. Chem., Int. Ed., 2015, 54, 7612-7616), who have identified the presence of Ag2 and Ag3 AgNCs. The goal of this work was to get information on the photophysics of these AgNCs, which was achieved by combining information from excitation/emission matrix (EEM) and time resolved emission spectroscopy (TRES) along with DFT/TD-DFT calculations. This procedure allowed deconvolving the emission and excitation spectra of the AgNC mixture, with further assignment of each transition and lifetime associated to Ag2, Ag3+ and Ag42+ clusters. This deconvolution together with theoretical calculations allowed suggesting for the first time the radiative and non-radiative excited state deactivation mechanism for these clusters.
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Affiliation(s)
- Martín I Taccone
- Departamento de Fisicoquímica, Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, Ciudad Universitaria, Pabellón Argentina, X5000HUA Córdoba, Argentina.
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27
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Fenwick O, Coutiño-Gonzalez E, Richard F, Bonacchi S, Baekelant W, de Vos D, Roeffaers MBJ, Hofkens J, Samorì P. X-Ray-Induced Growth Dynamics of Luminescent Silver Clusters in Zeolites. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2020; 16:e2002063. [PMID: 32484276 DOI: 10.1002/smll.202002063] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/30/2020] [Revised: 04/24/2020] [Accepted: 04/28/2020] [Indexed: 06/11/2023]
Abstract
Herein, AlKα X-rays are used to drive the growth of luminescent silver clusters in zeolites. The growth of the silver species is tracked using Auger spectroscopy and fluorescence microscopy, by monitoring the evolution from their ions to luminescent clusters and then metallic, dark nanoparticles. It is shown that the growth rate in different zeolites is determined by the mobility of the silver ions in the framework and that the growth dynamics in calcined samples obeys the Hill-Langmuir equation for noncooperative binding. Comparison of the optical properties of X-ray-grown silver clusters with silver clusters formed by standard heat treatment indicates that the latter have a higher specificity toward the formation of luminescent clusters of a specific (small) nuclearity, whereas the former produce a wide distribution of cluster species as well as larger nanoparticles.
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Affiliation(s)
- Oliver Fenwick
- University of Strasbourg, CNRS, ISIS UMR 7006, 8 Alleé Gaspard Monge, Strasbourg, F-67000, France
- School of Engineering and Materials Science, Queen Mary University of London, Mile End Road, London, E1 4NS, UK
| | - Eduardo Coutiño-Gonzalez
- Centro de Investigaciones en Óptica, A. C. Loma del Bosque 115, Colonia Lomas, del Campestre, León, Guanajuato, 37150, Mexico
| | - Fanny Richard
- University of Strasbourg, CNRS, ISIS UMR 7006, 8 Alleé Gaspard Monge, Strasbourg, F-67000, France
| | - Sara Bonacchi
- University of Strasbourg, CNRS, ISIS UMR 7006, 8 Alleé Gaspard Monge, Strasbourg, F-67000, France
- Dipartimento di Scienze Chimiche, Università di Padova, Via Marzolo, 1, Padova, 35131, Italy
| | - Wouter Baekelant
- Chem&Tech-Molecular Imaging and Photonics, KU Leuven, Celestijnenlaan 200F, Leuven, B-3001, Belgium
| | - Dirk de Vos
- cMACS, Department of Microbial and Molecular Systems, KU Leuven, Celestijnenlaan, 200F, Heverlee, 3001, Belgium
| | - Maarten B J Roeffaers
- cMACS, Department of Microbial and Molecular Systems, KU Leuven, Celestijnenlaan, 200F, Heverlee, 3001, Belgium
| | - Johan Hofkens
- Chem&Tech-Molecular Imaging and Photonics, KU Leuven, Celestijnenlaan 200F, Leuven, B-3001, Belgium
| | - Paolo Samorì
- University of Strasbourg, CNRS, ISIS UMR 7006, 8 Alleé Gaspard Monge, Strasbourg, F-67000, France
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Yao D, Wang Y, Li P, Li H. Luminescent Ag + exchanged SOD zeolites with their potential applications in white LEDs. Dalton Trans 2020; 49:8179-8185. [PMID: 32515456 DOI: 10.1039/d0dt01425g] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
Ag+ exchanged zeolites (Ag-zeolites) combining the advantages of high stability of microporous zeolites with the unique optical properties of silver clusters are attractive as promising functional materials. In this work, we systematically studied the optical properties of Ag+ exchanged SOD zeolites, obtaining tuned emission from yellow to blue and for the first time acquired white-emitting Ag-zeolite phosphors at a mild temperature (<300 °C). This tunable emission color was found to be caused by lattice shrinkage and lattice expansion of the framework in SOD zeolites. The obtained white emitting phosphors show Commission Internationale de I'Eclairage (CIE) chromaticity coordinates of (0.33, 0.34) under 395 nm excitation. In addition, we fabricated warm white LEDs with these white emitting phosphors, which show CIE coordinates of (0.37, 0.34), with a lower correlated color temperature (CCT) of 4329 K and a higher color rendering index (CRI) of 91.
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Affiliation(s)
- Decui Yao
- National-Local Joint Engineering Laboratory for Energy Conservation in Chemical Process Integration and Resources Utilization, Tianjin Key Laboratory of Chemical Process Safety, School of Chemical Engineering and Technology, Hebei University of Technology, Guangrong Dao 8, Hongqiao District, Tianjin 300130, P. R. China.
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Shi Y, Ye S, Liao H, Liu J, Wang D. Formation of luminescent silver-clusters and efficient energy transfer to Eu3+ in faujasite NaX zeolite. J SOLID STATE CHEM 2020. [DOI: 10.1016/j.jssc.2020.121227] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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30
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Baekelant W, Romolini G, Sun L, De Ras M, Fron E, Moreira T, Viola C, Ruivo A, Laia CAT, Martens J, Martin C, Kim CW, van der Auweraer M, Roeffaers MBJ, Hofkens J, Coutino-Gonzalez E. Tunable white emission of silver-sulfur-zeolites as single-phase LED phosphors. Methods Appl Fluoresc 2020; 8:024004. [PMID: 31995792 DOI: 10.1088/2050-6120/ab7169] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Metal clusters confined inside zeolite materials display remarkable luminescent properties, making them very suitable as potential alternative phosphors in white LED applications. However, up to date, only single-color emitters have been reported for luminescent metal-exchanged zeolites. In this study, we synthesized and characterized white emitting silver-sulfur zeolites, which show a remarkable color tunability upon the incorporation of silver species in highly luminescent sulfur-zeolites. Via a combined steady-state and time-resolved photoluminescence spectroscopy characterization, we suggest that the observed luminescence and tunability arise from the presence of two different species. The first associated to an orange-red emitting silver cluster (Ag-CL), whereas the second is related to a blue-white emitting S-Ag-species. The relative contribution of both luminescent species depends on the synthesis procedure. It was shown that the formation of the blue-white emitting S-Ag-species is favored upon a heat-treatment of the samples.
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Affiliation(s)
- Wouter Baekelant
- Chem & Tech, Molecular Imaging and Photonics, KU Leuven, Celestijnenlaan 200 F, B-3001 Leuven, Belgium
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31
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Yang TQ, Peng B, Shan BQ, Zong YX, Jiang JG, Wu P, Zhang K. Origin of the Photoluminescence of Metal Nanoclusters: From Metal-Centered Emission to Ligand-Centered Emission. NANOMATERIALS 2020; 10:nano10020261. [PMID: 32033058 PMCID: PMC7075164 DOI: 10.3390/nano10020261] [Citation(s) in RCA: 83] [Impact Index Per Article: 20.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/23/2019] [Revised: 01/26/2020] [Accepted: 01/29/2020] [Indexed: 12/17/2022]
Abstract
Recently, metal nanoclusters (MNCs) emerged as a new class of luminescent materials and have attracted tremendous interest in the area of luminescence-related applications due to their excellent luminous properties (good photostability, large Stokes shift) and inherent good biocompatibility. However, the origin of photoluminescence (PL) of MNCs is still not fully understood, which has limited their practical application. In this mini-review, focusing on the origin of the photoemission emission of MNCs, we simply review the evolution of luminescent mechanism models of MNCs, from the pure metal-centered quantum confinement mechanics to ligand-centered p band intermediate state (PBIS) model via a transitional ligand-to-metal charge transfer (LMCT or LMMCT) mechanism as a compromise model.
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Affiliation(s)
| | | | | | | | | | - Peng Wu
- Correspondence: (P.W.); (K.Z.)
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32
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Chai Y, Shang W, Li W, Wu G, Dai W, Guan N, Li L. Noble Metal Particles Confined in Zeolites: Synthesis, Characterization, and Applications. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2019; 6:1900299. [PMID: 31453060 PMCID: PMC6702632 DOI: 10.1002/advs.201900299] [Citation(s) in RCA: 76] [Impact Index Per Article: 15.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/07/2019] [Revised: 03/14/2019] [Indexed: 05/19/2023]
Abstract
Noble metal nanoparticles or subnanometric particles confined in zeolites, that is, metal@zeolite, represent an important type of functional materials with typical core-shell structure. This type of material is known for decades and recently became a research hotspot due to their emerging applications in various fields. Remarkable achievements are made dealing with the synthesis, characterization, and applications of noble metal particles confined in zeolites. Here, the most representative research progress in metal@zeolites is briefly reviewed, aiming to boost further research on this topic. For the synthesis of metal@zeolites, various strategies, such as direct synthesis from inorganic or ligand-assisted noble metal precursors, multistep postsynthesis encapsulation and ion-exchange followed by reduction, are introduced and compared. For the characterization of metal@zeolites, several most useful techniques, such as electron microscopy, X-ray based spectroscopy, infrared and fluorescence emission spectroscopy, are recommended to check the successful confinement of noble metal particles in zeolite matrix and their unique physiochemical properties. For the applications of metal@zeolites, catalysis and optics are involved with an emphasis on catalytic applications including the size-dependent catalytic properties, the sintering-resistance properties, the substrate shape-selective catalysis, and catalysis modulation by zeolite microenvironment.
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Affiliation(s)
- Yuchao Chai
- School of Materials Science and EngineeringNational Institute for Advanced MaterialsNankai UniversityTianjin300350China
| | - Weixiang Shang
- School of Materials Science and EngineeringNational Institute for Advanced MaterialsNankai UniversityTianjin300350China
| | - Weijie Li
- School of Materials Science and EngineeringNational Institute for Advanced MaterialsNankai UniversityTianjin300350China
| | - Guangjun Wu
- School of Materials Science and EngineeringNational Institute for Advanced MaterialsNankai UniversityTianjin300350China
- Key Laboratory of Advanced Energy Materials Chemistry of Ministry of EducationCollaborative Innovation Center of Chemical Science and EngineeringNankai UniversityTianjin300071China
| | - Weili Dai
- School of Materials Science and EngineeringNational Institute for Advanced MaterialsNankai UniversityTianjin300350China
- Key Laboratory of Advanced Energy Materials Chemistry of Ministry of EducationCollaborative Innovation Center of Chemical Science and EngineeringNankai UniversityTianjin300071China
| | - Naijia Guan
- School of Materials Science and EngineeringNational Institute for Advanced MaterialsNankai UniversityTianjin300350China
- Key Laboratory of Advanced Energy Materials Chemistry of Ministry of EducationCollaborative Innovation Center of Chemical Science and EngineeringNankai UniversityTianjin300071China
| | - Landong Li
- School of Materials Science and EngineeringNational Institute for Advanced MaterialsNankai UniversityTianjin300350China
- Key Laboratory of Advanced Energy Materials Chemistry of Ministry of EducationCollaborative Innovation Center of Chemical Science and EngineeringNankai UniversityTianjin300071China
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33
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Temerev VL, Vedyagin AA, Iost KN, Pirutko LV, Cherepanova SV, Kenzhin RM, Stoyanovskii VO, Trenikhin MV, Shlyapin DA. Purification of exhaust gases from gasoline engine using adsorption-catalytic systems. Part 1: trapping of hydrocarbons by Ag-modified ZSM-5. REACTION KINETICS MECHANISMS AND CATALYSIS 2019. [DOI: 10.1007/s11144-019-01588-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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34
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Machado GE, Pereyra AM, Rosato VG, Moreno MS, Basaldella EI. Improving the biocidal activity of outdoor coating formulations by using zeolite-supported silver nanoparticles. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2019; 98:789-799. [PMID: 30813085 DOI: 10.1016/j.msec.2019.01.040] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/22/2018] [Revised: 11/10/2018] [Accepted: 01/08/2019] [Indexed: 01/20/2023]
Abstract
Zeolite/nanoparticle composites are synthesized and used as additive for waterborne formulations in replacement of traditional isothiazolinone-based biocides. Silver nanoparticles dispersed onto micrometer-sized crystals of A-type zeolite were prepared by thermal treatment or chemical reduction methods applied to the Ag-exchanged zeolite. The antifungal efficiency against Trichoderma sp. of waterborne outdoor coatings containing the supported silver nanoparticles, measured in terms of inhibition halo development, shows similar results to those obtained by using traditional organic biocides, the type, size and size distribution of the nanoparticles being the main factors affecting the biocidal action of the prepared coatings.
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Affiliation(s)
- Gladys E Machado
- Universidad Tecnológica Nacional-Facultad Regional La Plata, 60 esq. 124, 1900 La Plata, Argentina
| | - Andrea M Pereyra
- Universidad Tecnológica Nacional-Facultad Regional La Plata, 60 esq. 124, 1900 La Plata, Argentina; CINDECA, CCT-La Plata-CONICET, CIC-Universidad Nacional de La Plata, 47 Np. 257, B1900AJK La Plata, Argentina.
| | | | - Mario S Moreno
- Centro Atómico Bariloche, 8400 San Carlos de Bariloche, Argentina
| | - Elena I Basaldella
- CINDECA, CCT-La Plata-CONICET, CIC-Universidad Nacional de La Plata, 47 Np. 257, B1900AJK La Plata, Argentina
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35
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Cerretani C, Vosch T. Switchable Dual-Emissive DNA-Stabilized Silver Nanoclusters. ACS OMEGA 2019; 4:7895-7902. [PMID: 31459877 PMCID: PMC6693819 DOI: 10.1021/acsomega.9b00614] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/05/2019] [Accepted: 04/19/2019] [Indexed: 05/10/2023]
Abstract
We investigated an ss-DNA sequence that can stabilize a red- and a green-emissive silver nanocluster (DNA-AgNC). These two emitters can convert between each other in a reversible way. The change from red- to green-emitting DNA-AgNCs can be triggered by the addition of H2O2, while the opposite conversion can be achieved by the addition of NaBH4. Besides demonstrating the switching between red- and green-emissive DNA-AgNCs and determining the recoverability, we fully characterized the photophysical properties, such as steady-state emission, quantum yield, fluorescence lifetime, and anisotropy of the two emissive species. Understanding the mechanism behind the remarkable conversion between the two emitters could lead to the development of a new range of DNA-AgNC-based ratiometric sensors.
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36
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Sun WF, Sun YX, Zhang ST, Chi MH. Hydrogen Storage, Magnetism and Electrochromism of Silver Doped FAU Zeolite: First-Principles Calculations and Molecular Simulations. Polymers (Basel) 2019; 11:polym11020279. [PMID: 30960263 PMCID: PMC6419046 DOI: 10.3390/polym11020279] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2019] [Revised: 02/03/2019] [Accepted: 02/04/2019] [Indexed: 11/16/2022] Open
Abstract
The complex configuration, H₂ adsorption binding energy, magnetic, and optical properties of FAU zeolites with Ag cations loaded by ion exchange in the vacant dielectric cavities were investigated by employing the first-principles calculations with all-electron-relativistic numerical atom-orbitals scheme and the Metropolis Monte Carlo molecular simulations. The visible absorption spectrum peaked at distinct wavelengths arranging from red or green to blue colors when changing the net charge load, due to the produced various redox states of Ag cations exchanging at multiple Li⁺-substituted sites. The spin population analyses indicate the ferrimagnetic coupling between Al⁻O⁻Si framework and Ag cations originates from the major ferromagnetic spin polarization in Ag cation cluster coordinating with sodalite cages, with the net spins appreciably depending on the Ag content and exchange site. The H₂ adsorption capacities and binding energies represent significant dependence on the content, location, and electronic property of Ag cations introduced into the FAU zeolites. The evident decrease of H₂ adsorption binding energy with increased loading concentration demonstrates repulsive interaction between H₂ molecules and heterogeneous adsorption configuration on Ag cations. The adsorption sites of H₂ sorted by the binding energy with different adsorption configurations were correlated with exchange sites of Ag cations under different Ag loading to comprehend the H₂ adsorption mechanism.
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Affiliation(s)
- Wei-Feng Sun
- Heilongjiang Provincial Key Laboratory of Dielectric Engineering, School of Electrical and Electronic Engineering, Harbin University of Science and Technology, Harbin 150080, China.
- Key Laboratory of Engineering Dielectrics and Its Application, Ministry of Education, Harbin University of Science and Technology, Harbin 150080, China.
| | - Yu-Xuan Sun
- Heilongjiang Provincial Key Laboratory of Dielectric Engineering, School of Electrical and Electronic Engineering, Harbin University of Science and Technology, Harbin 150080, China.
- Key Laboratory of Engineering Dielectrics and Its Application, Ministry of Education, Harbin University of Science and Technology, Harbin 150080, China.
| | - Shu-Ting Zhang
- Heilongjiang Provincial Key Laboratory of Dielectric Engineering, School of Electrical and Electronic Engineering, Harbin University of Science and Technology, Harbin 150080, China.
- Key Laboratory of Engineering Dielectrics and Its Application, Ministry of Education, Harbin University of Science and Technology, Harbin 150080, China.
| | - Ming-He Chi
- Heilongjiang Provincial Key Laboratory of Dielectric Engineering, School of Electrical and Electronic Engineering, Harbin University of Science and Technology, Harbin 150080, China.
- Key Laboratory of Engineering Dielectrics and Its Application, Ministry of Education, Harbin University of Science and Technology, Harbin 150080, China.
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37
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Baekelant W, Aghakhani S, Coutino-Gonzalez E, Kennes K, D'Acapito F, Grandjean D, Van der Auweraer M, Lievens P, Roeffaers MBJ, Hofkens J, Steele JA. Shaping the Optical Properties of Silver Clusters Inside Zeolite A via Guest-Host-Guest Interactions. J Phys Chem Lett 2018; 9:5344-5350. [PMID: 30130110 DOI: 10.1021/acs.jpclett.8b01890] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
The appealing luminescent properties of Ag-zeolites have been shown to be dependent on the local environment of the confined silver clusters. Herein, we shed light on the properties of Ag clusters inside hydrated Linde-type A (LTA) zeolites and relate them to the nature of the host framework when expanded and compressed by the incorporation of Li+ cations and the Ag+ loading. Within this scenario, we measure a strong emission color shift in these materials, which we directly correlate with the fine structure details derived by optical luminescence-detected X-ray absorption in combination with deep UV-Raman spectroscopy and X-ray diffraction. Strong guest-host-guest interactions are revealed to underpin the variations in the optical properties; a modification in the zeolite lattice parameter results in changing bond lengths of the silver cluster. This interplay between the host zeolite and its confined guests can thus be harnessed to easily tune the Ag-zeolites' emission properties.
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Affiliation(s)
- Wouter Baekelant
- Chem&Tech-Molecular Imaging and Photonics , KU Leuven , Celestijnenlaan 200F , B-3001 Leuven , Belgium
- Chem&Tech-Center for Surface Chemistry and Catalysis , KU Leuven , Celestijnenlaan 200F , 3001 Heverlee , Belgium
| | - Saleh Aghakhani
- Department of Physics and Astronomy, Laboratory of Solid State Physics and Magnetism , KU Leuven , Celestijnenlaan 200D , B-3001 Leuven , Belgium
| | - Eduardo Coutino-Gonzalez
- CONACYT-Centro de Investigación y Desarrollo Tecnológico en Electroquímica , Parque Industrial Querétaro, Sanfandila s/n, Pedro Escobedo 76703 , Querétaro , México
| | - Koen Kennes
- Chem&Tech-Molecular Imaging and Photonics , KU Leuven , Celestijnenlaan 200F , B-3001 Leuven , Belgium
| | - Francesco D'Acapito
- CNR-IOM-OGG c/o ESRF , LISA CRG , 71 Avenue Des Martyrs , 38000 Grenoble , France
| | - Didier Grandjean
- Department of Physics and Astronomy, Laboratory of Solid State Physics and Magnetism , KU Leuven , Celestijnenlaan 200D , B-3001 Leuven , Belgium
| | - Mark Van der Auweraer
- Chem&Tech-Molecular Imaging and Photonics , KU Leuven , Celestijnenlaan 200F , B-3001 Leuven , Belgium
| | - Peter Lievens
- Department of Physics and Astronomy, Laboratory of Solid State Physics and Magnetism , KU Leuven , Celestijnenlaan 200D , B-3001 Leuven , Belgium
| | - Maarten B J Roeffaers
- Chem&Tech-Center for Surface Chemistry and Catalysis , KU Leuven , Celestijnenlaan 200F , 3001 Heverlee , Belgium
| | - Johan Hofkens
- Chem&Tech-Molecular Imaging and Photonics , KU Leuven , Celestijnenlaan 200F , B-3001 Leuven , Belgium
| | - Julian A Steele
- Chem&Tech-Center for Surface Chemistry and Catalysis , KU Leuven , Celestijnenlaan 200F , 3001 Heverlee , Belgium
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38
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Grandjean D, Coutiño-Gonzalez E, Cuong NT, Fron E, Baekelant W, Aghakhani S, Schlexer P, D’Acapito F, Banerjee D, Roeffaers MBJ, Nguyen MT, Hofkens J, Lievens P. Origin of the bright photoluminescence of few-atom silver clusters confined in LTA zeolites. Science 2018; 361:686-690. [DOI: 10.1126/science.aaq1308] [Citation(s) in RCA: 94] [Impact Index Per Article: 15.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2017] [Accepted: 06/15/2018] [Indexed: 11/02/2022]
Abstract
Silver (Ag) clusters confined in matrices possess remarkable luminescence properties, but little is known about their structural and electronic properties. We characterized the bright green luminescence of Ag clusters confined in partially exchanged Ag–Linde Type A (LTA) zeolites by means of a combination of x-ray excited optical luminescence-extended x-ray absorption fine structure, time-dependent–density functional theory calculations, and time-resolved spectroscopy. A mixture of tetrahedral Ag4(H2O)x2+(x= 2 andx= 4) clusters occupies the center of a fraction of the sodalite cages. Their optical properties originate from a confined two-electron superatom quantum system with hybridized Ag and water O orbitals delocalized over the cluster. Upon excitation, one electron of the s-type highest occupied molecular orbital is promoted to the p-type lowest unoccupied molecular orbitals and relaxes through enhanced intersystem crossing into long-lived triplet states.
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39
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Aghakhani S, Grandjean D, Baekelant W, Coutiño-Gonzalez E, Fron E, Kvashnina K, Roeffaers MBJ, Hofkens J, Sels BF, Lievens P. Atomic scale reversible opto-structural switching of few atom luminescent silver clusters confined in LTA zeolites. NANOSCALE 2018; 10:11467-11476. [PMID: 29888348 DOI: 10.1039/c8nr03222j] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
Luminescent silver clusters (AgCLs) stabilized inside partially Ag exchanged Na LTA zeolites show a remarkable reversible on-off switching of their green-yellowish luminescence that is easily tuned by a hydration and dehydration cycle, making them very promising materials for sensing applications. We have used a unique combination of photoluminescence (PL), UV-visible-NIR Diffuse Reflectance (DRS), X-ray absorption fine structure (XAFS), Fourier Transform-Infrared (FTIR) and electron spin resonance (ESR) spectroscopies to unravel the atomic-scale structural changes responsible for the reversible optical behavior of the confined AgCLs in LTA zeolites. Water coordinated, diamagnetic, tetrahedral AgCLs [Ag4(H2O)4]2+ with Ag atoms positioned along the axis of the sodalite six-membered rings are at the origin of the broad and intense green-yellowish luminescence in the hydrated sample. Upon dehydration, luminescent [Ag4(H2O)4]2+ clusters are transformed into non-luminescent (dark), diamagnetic, octahedral AgCLs [Ag6(OF)14]2+ with Ag atoms interacting strongly with zeolite framework oxygen (OF) of the sodalite four-membered rings. This highly responsive on-off switching reveals that besides quantum confinement and molecular-size, coordinated water and framework oxygen ligands strongly affect the organization of AgCLs valence electrons and play a crucial role in the opto-structural properties of AgCLs.
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Affiliation(s)
- Saleh Aghakhani
- Department of Physics and Astronomy, Laboratory of Solid State Physics and Magnetism, KU Leuven, Celestijnenlaan 200D, 3001 Leuven, Belgium.
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40
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Panezai H, Sun J, Jin X, Ullah R. Location of silver clusters confined in FAU skeleton of dehydrated bi-metallic AgxM96−x-LSX (M = Na+, Li+) zeolite and resultant influences on N2 and O2 adsorption. Sep Purif Technol 2018. [DOI: 10.1016/j.seppur.2018.01.027] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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41
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Donato L, Atoini Y, Prasetyanto EA, Chen P, Rosticher C, Bizzarri C, Rissanen K, De Cola L. Selective Encapsulation and Enhancement of the Emission Properties of a Luminescent Cu(I) Complex in Mesoporous Silica. Helv Chim Acta 2018. [DOI: 10.1002/hlca.201700273] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Loïc Donato
- Institut de Science et Ingenierie Supramoleculaires (ISIS - UMR 7006); CNRS; Universite de Strasbourg; 8 Rue Gaspard Monge 67000 Strasbourg France
| | - Youssef Atoini
- Institut de Science et Ingenierie Supramoleculaires (ISIS - UMR 7006); CNRS; Universite de Strasbourg; 8 Rue Gaspard Monge 67000 Strasbourg France
| | - Eko Adi Prasetyanto
- Institut de Science et Ingenierie Supramoleculaires (ISIS - UMR 7006); CNRS; Universite de Strasbourg; 8 Rue Gaspard Monge 67000 Strasbourg France
- Department of Pharmacy; Faculty of Medicine; Atma Jaya Catholic University of Indonesia; Jakarta 14440 Indonesia
| | - Pengkun Chen
- Institut de Science et Ingenierie Supramoleculaires (ISIS - UMR 7006); CNRS; Universite de Strasbourg; 8 Rue Gaspard Monge 67000 Strasbourg France
| | - Céline Rosticher
- Hybrid Nanomaterials Unit; Institute for Nanotechnology; Karlsruhe Institute of Technology - Campus; North, Hermann-von-Helmholtz-Platz 1 76344 Eggenstein-Leopoldshafen Deutschland
| | - Claudia Bizzarri
- Institut de Science et Ingenierie Supramoleculaires (ISIS - UMR 7006); CNRS; Universite de Strasbourg; 8 Rue Gaspard Monge 67000 Strasbourg France
| | - Kari Rissanen
- Department of Chemistry; Nanoscience Center; University of Jyvaskyla; P.O. Box 35 FI-40014 Jyväskylä Finland
| | - Luisa De Cola
- Institut de Science et Ingenierie Supramoleculaires (ISIS - UMR 7006); CNRS; Universite de Strasbourg; 8 Rue Gaspard Monge 67000 Strasbourg France
- Hybrid Nanomaterials Unit; Institute for Nanotechnology; Karlsruhe Institute of Technology - Campus; North, Hermann-von-Helmholtz-Platz 1 76344 Eggenstein-Leopoldshafen Deutschland
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42
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Coutiño-Gonzalez E, Baekelant W, Steele JA, Kim CW, Roeffaers MBJ, Hofkens J. Silver Clusters in Zeolites: From Self-Assembly to Ground-Breaking Luminescent Properties. Acc Chem Res 2017; 50:2353-2361. [PMID: 28862837 DOI: 10.1021/acs.accounts.7b00295] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
Interest for functional silver clusters (Ag-CLs) has rapidly grown over years due to large advances in the field of nanoscale fabrication and materials science. The continuous development of strategies to fabricate small-scale silver clusters, together with their interesting physicochemical properties (molecule-like discrete energy levels, for example), make them very attractive for a wide variety of applied research fields, from biotechnology and the environmental sciences to fundamental chemistry and physics. Apart from useful catalytic properties, silver clusters (Agn, n < 10) were recently shown to also exhibit exceptional optical properties. The optical properties and performance of Ag-CLs offer strong potential for their integration into appealing micro(nano)-optoelectronic devices. To date, however, the rational design and directed synthesis of Ag-CLs with specific functionalities has remained elusive. The inability for rational design stems mainly from a lack of understanding of their novel atomic-scale phenomena. This is because accurately studying silver cluster systems at such a scale is hindered by the perturbations introduced during exposure to various experimental probes. For instance, silver possesses a strong tendency to cluster and form ever-larger Ag aggregates while probed with high-energy electron beams and X-ray irradiation. As well, there exists a need to provide a stabilizing environment for which Agnδ+ clusters can persist, setting up a complex interacting guest-host system, as isolated silver clusters are confined within a suitable hosting medium. Fundamental research into Agnδ+ formation mechanisms and their important optical properties is paramount to establishing truly informed synthesis protocols. Over recent years, we have developed several protocols for the ship-in-a-bottle synthesis of highly luminescent Ag-CLs within the microporous interiors of zeolite frameworks. This approach has yielded materials displaying a wide variety of optical properties, offering a spectrum of possible applications, from nano(micro)photonic devices to smart luminescent labels and sensors. The versatility of the Ag-zeolite multicomponent system is directly related to the intrinsic and complex tunability of the system as a whole. There are several key zeolite parameters that confer properties to the clusters, namely, the framework Si/Al ratio, choice of counterbalancing ions, silver loading, and zeolite topology, and cannot be overlooked. This Account is intended to shed light on the current state-of-the-art of luminescent Ag-CLs confined in zeolitic matrices, emphasizing the use of combinatorial approaches to overcome problems associated with the correct characterization and correlation of their structural, electronic, and photoluminescence properties, all to establish the important design principles for developing functional silver-zeolite-based materials. Additionally, examples of emerging applications and future perspectives for functional luminescent Ag-zeolite materials are addressed in this Account.
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Affiliation(s)
- Eduardo Coutiño-Gonzalez
- Chem&Tech - Molecular Imaging and Photonics, KU Leuven, Celestijnenlaan 200F, B-3001 Leuven, Belgium
- CONACYT
- Centro de Investigación y Desarrollo Tecnológico en
Electroquímica, Parque Industrial Querétaro, Sanfandila s/n, Pedro Escobedo, 76703 Querétaro, Mexico
| | - Wouter Baekelant
- Chem&Tech - Molecular Imaging and Photonics, KU Leuven, Celestijnenlaan 200F, B-3001 Leuven, Belgium
| | - Julian A. Steele
- Chem&Tech - Centre for Surface Chemistry and Catalysis, KU Leuven, Celestijnenlaan 200F, B-3001 Leuven, Belgium
| | - Cheol Woong Kim
- Chem&Tech - Molecular Imaging and Photonics, KU Leuven, Celestijnenlaan 200F, B-3001 Leuven, Belgium
| | - Maarten B. J. Roeffaers
- Chem&Tech - Centre for Surface Chemistry and Catalysis, KU Leuven, Celestijnenlaan 200F, B-3001 Leuven, Belgium
| | - Johan Hofkens
- Chem&Tech - Molecular Imaging and Photonics, KU Leuven, Celestijnenlaan 200F, B-3001 Leuven, Belgium
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Ye S, Sun J, Yi X, Wang Y, Zhang Q. Interaction between the exchanged Mn 2+ and Yb 3+ ions confined in zeolite-Y and their luminescence behaviours. Sci Rep 2017; 7:46219. [PMID: 28393920 PMCID: PMC5385532 DOI: 10.1038/srep46219] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2016] [Accepted: 03/13/2017] [Indexed: 01/06/2023] Open
Abstract
Luminescent zeolites exchanged with two distinct and interacted emissive ions are vital but less-studied for the potential applications in white light emitting diodes, solar cells, optical codes, biomedicine and so on. Typical transition metal ion Mn2+ and lanthanide ion Yb3+ are adopted as a case study via their characteristic transitions and the interaction between them. The option is considered with that the former with d-d transition has a large gap between the first excited state 4T1 and the ground state 6A1 (normally >17,000 cm-1) while the latter with f-f transition has no metastable excited state above 10,000 cm-1, which requires the vicinity of these two ions for energy transfer. The results of various characterizations, including BET measurement, photoluminescence spectroscopy, solid-state NMR, and X-ray absorption spectroscopy, etc., show that Yb3+ would preferably enter into the zeolite-Y pores and introduction of Mn2+ would cause aggregation of each other. Herein, cation-cation repulsion may play a significant role for the high valence of Mn2+ and Yb3+ when exchanging the original cations with +1 valence. Energy transfer phenomena between Mn2+ and Yb3+ occur only at elevated contents in the confined pores of zeolite. The research would benefit the design of zeolite composite opto-functional materials.
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Affiliation(s)
- Shi Ye
- State Key Lab of Luminescent Materials and Devices, and Guangdong Provincial Key Laboratory of Fiber Laser Materials and Applied Techniques, South China University of Technology, Guangzhou 510641, China
| | - Jiayi Sun
- State Key Lab of Luminescent Materials and Devices, and Guangdong Provincial Key Laboratory of Fiber Laser Materials and Applied Techniques, South China University of Technology, Guangzhou 510641, China
| | - Xiong Yi
- State Key Lab of Luminescent Materials and Devices, and Guangdong Provincial Key Laboratory of Fiber Laser Materials and Applied Techniques, South China University of Technology, Guangzhou 510641, China
| | - Yonggang Wang
- High Pressure Synergetic Consortium (HPSynC), Geophysical Laboratory, Carnegie Institution of Washington, Argonne, Illinois 60439, USA
| | - Qinyuan Zhang
- State Key Lab of Luminescent Materials and Devices, and Guangdong Provincial Key Laboratory of Fiber Laser Materials and Applied Techniques, South China University of Technology, Guangzhou 510641, China
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44
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Maksimov D, Pomogaev V, Kononov A. Excitation spectra of Ag 3 –DNA bases complexes: A benchmark study. Chem Phys Lett 2017. [DOI: 10.1016/j.cplett.2017.01.074] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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45
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Yumura T, Kumondai M, Kuroda Y, Wakasugi T, Kobayashi H. Utilizing super-atom orbital ideas to understand properties of silver clusters inside ZSM-5 zeolite. RSC Adv 2017. [DOI: 10.1039/c6ra26492a] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The energetic properties of Agn clusters in ZSM-5 zeolite, obtained from density functional theory (DFT) calculations with the B3PW91 functional, can be well understood by utilizing super-atom orbital ideas.
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Affiliation(s)
- Takashi Yumura
- Department of Chemistry and Materials Technology
- Kyoto Institute of Technology
- Kyoto
- Japan
| | - Mitsuhiro Kumondai
- Department of Chemistry and Materials Technology
- Kyoto Institute of Technology
- Kyoto
- Japan
| | - Yasushige Kuroda
- Department of Chemistry
- Graduate School of Natural Science and Technology
- Okayama University
- Okayama 700-8530
- Japan
| | - Takashi Wakasugi
- Department of Chemistry and Materials Technology
- Kyoto Institute of Technology
- Kyoto
- Japan
| | - Hisayoshi Kobayashi
- Department of Chemistry and Materials Technology
- Kyoto Institute of Technology
- Kyoto
- Japan
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46
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Fares H, Santos SNC, Santos MV, Franco DF, Souza AE, Manzani D, Mendonça CR, Nalin M. Highly luminescent silver nanocluster-doped fluorophosphate glasses for microfabrication of 3D waveguides. RSC Adv 2017. [DOI: 10.1039/c7ra11792b] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Highly photoluminescent glasses were prepared by embedding silver nanoclusters (Ag NCs) in a fluorophosphate matrix using a melt-quenching method.
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Affiliation(s)
- H. Fares
- Institute of Chemistry
- São Paulo State University
- UNESP
- Araraquara
- Brazil
| | - S. N. C. Santos
- São Carlos Institute of Physics
- University of São Paulo
- IFSC-USP
- São Carlos
- Brazil
| | - M. V. Santos
- São Carlos Institute of Physics
- University of São Paulo
- IFSC-USP
- São Carlos
- Brazil
| | - D. F. Franco
- Institute of Chemistry
- São Paulo State University
- UNESP
- Araraquara
- Brazil
| | - A. E. Souza
- Institute of Chemistry
- São Paulo State University
- UNESP
- Araraquara
- Brazil
| | - D. Manzani
- Institute of Chemistry of São Carlos
- University of São Paulo
- São Carlos
- Brazil
| | - C. R. Mendonça
- São Carlos Institute of Physics
- University of São Paulo
- IFSC-USP
- São Carlos
- Brazil
| | - M. Nalin
- Institute of Chemistry
- São Paulo State University
- UNESP
- Araraquara
- Brazil
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Coutino-Gonzalez E, Baekelant W, Dieu B, Roeffaers MBJ, Hofkens J. Nanostructured Ag-zeolite Composites as Luminescence-based Humidity Sensors. J Vis Exp 2016. [PMID: 27911397 PMCID: PMC5226226 DOI: 10.3791/54674] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Small silver clusters confined inside zeolite matrices have recently emerged as a novel type of highly luminescent materials. Their emission has high external quantum efficiencies (EQE) and spans the whole visible spectrum. It has been recently reported that the UV excited luminescence of partially Li-exchanged sodium Linde type A zeolites [LTA(Na)] containing luminescent silver clusters can be controlled by adjusting the water content of the zeolite. These samples showed a dynamic change in their emission color from blue to green and yellow upon an increase of the hydration level of the zeolite, showing the great potential that these materials can have as luminescence-based humidity sensors at the macro and micro scale. Here, we describe the detailed procedure to fabricate a humidity sensor prototype using silver-exchanged zeolite composites. The sensor is produced by suspending the luminescent Ag-zeolites in an aqueous solution of polyethylenimine (PEI) to subsequently deposit a film of the material onto a quartz plate. The coated plate is subjected to several hydration/dehydration cycles to show the functionality of the sensing film.
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Affiliation(s)
| | - Wouter Baekelant
- Division of Molecular Imaging and Photonics, Department of Chemistry, KU Leuven
| | - Bjorn Dieu
- Division of Molecular Imaging and Photonics, Department of Chemistry, KU Leuven
| | - Maarten B J Roeffaers
- Centre for Surface Chemistry and Catalysis, Department of Microbial and Molecular Systems, KU Leuven
| | - Johan Hofkens
- Division of Molecular Imaging and Photonics, Department of Chemistry, KU Leuven;
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48
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Ramazanov RR, Sych TS, Reveguk ZV, Maksimov DA, Vdovichev AA, Kononov AI. Ag-DNA Emitter: Metal Nanorod or Supramolecular Complex? J Phys Chem Lett 2016; 7:3560-6. [PMID: 27564452 DOI: 10.1021/acs.jpclett.6b01672] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
Ligand-stabilized luminescent metal clusters, in particular, DNA-based Ag clusters, are now employed in a host of applications such as sensing and bioimaging. Despite their utility, the nature of their excited states as well as detailed structures of the luminescent metal-ligand complexes remain poorly understood. We apply a new joint experimental and theoretical approach based on QM/MM-MD simulations of the fluorescence excitation spectra for three Ag clusters synthesized on a 12-mer DNA. Contrary to a previously proposed "rod-like" model, our results show that (1) three to four Ag atoms suffice to form a partially oxidized nanocluster emitting in visible range; (2) charge transfer from Ag cluster to DNA contributes to the excited states of the complexes; and (3) excitation spectra of the clusters are strongly affected by the bonding of Ag atoms to DNA bases. The presented approach can also provide a practical way to determine the structure and properties of other luminescent metal clusters.
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Affiliation(s)
- Ruslan R Ramazanov
- Department of Molecular Biophysics and Polymer Physics, St. Petersburg State University , 199034 St. Petersburg, Russia
| | - Tomash S Sych
- Department of Molecular Biophysics and Polymer Physics, St. Petersburg State University , 199034 St. Petersburg, Russia
| | - Zakhar V Reveguk
- Department of Molecular Biophysics and Polymer Physics, St. Petersburg State University , 199034 St. Petersburg, Russia
| | - Dmitriy A Maksimov
- Department of Molecular Biophysics and Polymer Physics, St. Petersburg State University , 199034 St. Petersburg, Russia
| | - Artem A Vdovichev
- Department of Molecular Biophysics and Polymer Physics, St. Petersburg State University , 199034 St. Petersburg, Russia
| | - Alexei I Kononov
- Department of Molecular Biophysics and Polymer Physics, St. Petersburg State University , 199034 St. Petersburg, Russia
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49
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Fenwick O, Coutiño-Gonzalez E, Grandjean D, Baekelant W, Richard F, Bonacchi S, De Vos D, Lievens P, Roeffaers M, Hofkens J, Samorì P. Tuning the energetics and tailoring the optical properties of silver clusters confined in zeolites. NATURE MATERIALS 2016; 15:1017-1022. [PMID: 27270964 DOI: 10.1038/nmat4652] [Citation(s) in RCA: 94] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/27/2015] [Accepted: 05/04/2016] [Indexed: 06/06/2023]
Abstract
The integration of metal atoms and clusters in well-defined dielectric cavities is a powerful strategy to impart new properties to them that depend on the size and geometry of the confined space as well as on metal-host electrostatic interactions. Here, we unravel the dependence of the electronic properties of metal clusters on space confinement by studying the ionization potential of silver clusters embedded in four different zeolite environments over a range of silver concentrations. Extensive characterization reveals a strong influence of silver loading and host environment on the cluster ionization potential, which is also correlated to the cluster's optical and structural properties. Through fine-tuning of the zeolite host environment, we demonstrate photoluminescence quantum yields approaching unity. This work extends our understanding of structure-property relationships of small metal clusters and applies this understanding to develop highly photoluminescent materials with potential applications in optoelectronics and bioimaging.
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Affiliation(s)
- Oliver Fenwick
- ISIS &icFRC, Université de Strasbourg &CNRS, 8, allée Gaspard Monge, 67000 Strasbourg, France
| | | | - Didier Grandjean
- Laboratory of Solid State Physics and Magnetism, KU Leuven, Celestijnenlaan 200D, B-3001 Leuven, Belgium
| | - Wouter Baekelant
- Department of Chemistry, KU Leuven, Celestijnenlaan 200F, B-3001 Leuven, Belgium
| | - Fanny Richard
- ISIS &icFRC, Université de Strasbourg &CNRS, 8, allée Gaspard Monge, 67000 Strasbourg, France
| | - Sara Bonacchi
- ISIS &icFRC, Université de Strasbourg &CNRS, 8, allée Gaspard Monge, 67000 Strasbourg, France
| | - Dirk De Vos
- Department of Microbial and Molecular Systems, KU Leuven, Celestijnenlaan 200F, B-3001 Leuven, Belgium
| | - Peter Lievens
- Laboratory of Solid State Physics and Magnetism, KU Leuven, Celestijnenlaan 200D, B-3001 Leuven, Belgium
| | - Maarten Roeffaers
- Department of Microbial and Molecular Systems, KU Leuven, Celestijnenlaan 200F, B-3001 Leuven, Belgium
| | - Johan Hofkens
- Department of Chemistry, KU Leuven, Celestijnenlaan 200F, B-3001 Leuven, Belgium
| | - Paolo Samorì
- ISIS &icFRC, Université de Strasbourg &CNRS, 8, allée Gaspard Monge, 67000 Strasbourg, France
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50
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Altantzis T, Coutino-Gonzalez E, Baekelant W, Martinez GT, Abakumov AM, Tendeloo GV, Roeffaers MBJ, Bals S, Hofkens J. Direct Observation of Luminescent Silver Clusters Confined in Faujasite Zeolites. ACS NANO 2016; 10:7604-7611. [PMID: 27391548 DOI: 10.1021/acsnano.6b02834] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
One of the ultimate goals in the study of metal clusters is the correlation between the atomic-scale organization and their physicochemical properties. However, direct observation of the atomic organization of such minuscule metal clusters is heavily hindered by radiation damage imposed by the different characterization techniques. We present direct evidence of the structural arrangement, at an atomic level, of luminescent silver species stabilized in faujasite (FAU) zeolites using aberration-corrected scanning transmission electron microscopy. Two different silver clusters were identified in Ag-FAU zeolites, a trinuclear silver species associated with green emission and a tetranuclear silver species related to yellow emission. By combining direct imaging with complementary information obtained from X-ray powder diffraction and Rietveld analysis, we were able to elucidate the main differences at an atomic scale between luminescent (heat-treated) and nonluminescent (cation-exchanged) Ag-FAU zeolites. It is expected that such insights will trigger the directed synthesis of functional metal nanocluster-zeolite composites with tailored luminescent properties.
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Affiliation(s)
- Thomas Altantzis
- EMAT, University of Antwerp , Groenenborgerlaan 171, B-2020 Antwerpen, Belgium
| | | | | | - Gerardo T Martinez
- EMAT, University of Antwerp , Groenenborgerlaan 171, B-2020 Antwerpen, Belgium
| | - Artem M Abakumov
- EMAT, University of Antwerp , Groenenborgerlaan 171, B-2020 Antwerpen, Belgium
| | | | | | - Sara Bals
- EMAT, University of Antwerp , Groenenborgerlaan 171, B-2020 Antwerpen, Belgium
| | - Johan Hofkens
- RIES, Hokkaido University , N20W10, Kita-Ward Sapporo 001-0020, Japan
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